At first, the ratio of Weijie's savings to Lihua's savings was 5:4.

The initial ratio of Weijie's savings to Lihua's savings is given as $ 5:4 $. This means that for every 5 units of savings Weijie has, Lihua has 4 units.

Let:

- Weijie's savings be $ 5x $,
- Lihua's savings be $ 4x $.

Here, $ x $ represents the common multiplier for both savings amounts. If we are provided with more information (like total savings or changes in savings), we can solve for $ x $ and calculate their individual savings.

Would you like to provide additional details, or do you have specific questions about this scenario?

### Relative Questions:
1. If Weijie's savings increased by 20%, what would be the new ratio of their savings?
2. If the total of their savings is $1800, how much does each person have?
3. How would the ratio change if Lihua saved an additional $200?
4. If Lihua doubles her savings, what will the new ratio between their savings be?
5. What would happen if both Weijie and Lihua increased their savings by 50%?

### Tip:
When working with ratios, it's often useful to express them in terms of a common variable (like $ x $) to simplify calculations.

Learn how to interpret and solve ratio problems using the example of Weijie's and Lihua's savings, given as a 5:4 ratio. This solution breaks down the use of algebraic expressions to represent savings and includes additional questions for practice. Suitable for students in Grades 6-8.

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