Finding the Third Proportional to 2,639 and 5,691
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Solution
The third proportional to 2,639 and 5,691 is: 12,272.63
Step by Step Solution
- Step 1: Write the proportion equation
2,639 : 5,691 = 5,691 : x - Step 2: Convert to fraction form
2,639/5,691 = 5,691/x - Step 3: Cross multiply
2,639x = 5,691 × 5,691 - Step 4: Simplify right side
2,639x = 32,387,481 - Step 5: Solve for x
x = 32,387,481/2,639 - Step 6: Final answer
x = 12,272.63
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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.