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.