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Finding the Third Proportional to 637.88 and 928.34

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Solution

The third proportional to 637.88 and 928.34 is: 1,351.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.88 : 928.34 = 928.34 : x
  2. Step 2: Convert to fraction form
    637.88/928.34 = 928.34/x
  3. Step 3: Cross multiply
    637.88x = 928.34 × 928.34
  4. Step 4: Simplify right side
    637.88x = 861,807.61
  5. Step 5: Solve for x
    x = 861,807.61/637.88
  6. Step 6: Final answer
    x = 1,351.06

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.