Finding the Third Proportional to 4.09 and 8.99
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Solution
The third proportional to 4.09 and 8.99 is: 19.75
Step by Step Solution
- Step 1: Write the proportion equation
4.09 : 8.99 = 8.99 : x - Step 2: Convert to fraction form
4.09/8.99 = 8.99/x - Step 3: Cross multiply
4.09x = 8.99 × 8.99 - Step 4: Simplify right side
4.09x = 80.79 - Step 5: Solve for x
x = 80.79/4.09 - Step 6: Final answer
x = 19.75
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Why These Related Problems?
These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.