Finding the Third Proportional to 662 and 1,285
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Solution
The third proportional to 662 and 1,285 is: 2,494.30
Step by Step Solution
- Step 1: Write the proportion equation
662 : 1,285 = 1,285 : x - Step 2: Convert to fraction form
662/1,285 = 1,285/x - Step 3: Cross multiply
662x = 1,285 × 1,285 - Step 4: Simplify right side
662x = 1,651,225 - Step 5: Solve for x
x = 1,651,225/662 - Step 6: Final answer
x = 2,494.30
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Why These Related Problems?
These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.