Finding the Third Proportional to 656.50 and 1,393
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Solution
The third proportional to 656.50 and 1,393 is: 2,955.75
Step by Step Solution
- Step 1: Write the proportion equation
656.50 : 1,393 = 1,393 : x - Step 2: Convert to fraction form
656.50/1,393 = 1,393/x - Step 3: Cross multiply
656.50x = 1,393 × 1,393 - Step 4: Simplify right side
656.50x = 1,940,449 - Step 5: Solve for x
x = 1,940,449/656.50 - Step 6: Final answer
x = 2,955.75
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Why These Related Problems?
These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.