Finding the Third Proportional to 3,642.47 and 5,421.94
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Solution
The third proportional to 3,642.47 and 5,421.94 is: 8,070.74
Step by Step Solution
- Step 1: Write the proportion equation
3,642.47 : 5,421.94 = 5,421.94 : x - Step 2: Convert to fraction form
3,642.47/5,421.94 = 5,421.94/x - Step 3: Cross multiply
3,642.47x = 5,421.94 × 5,421.94 - Step 4: Simplify right side
3,642.47x = 29,397,406.25 - Step 5: Solve for x
x = 29,397,406.25/3,642.47 - Step 6: Final answer
x = 8,070.74
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.