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Finding the Third Proportional to 938.75 and 1,274.88

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Solution

The third proportional to 938.75 and 1,274.88 is: 1,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    938.75 : 1,274.88 = 1,274.88 : x
  2. Step 2: Convert to fraction form
    938.75/1,274.88 = 1,274.88/x
  3. Step 3: Cross multiply
    938.75x = 1,274.88 × 1,274.88
  4. Step 4: Simplify right side
    938.75x = 1,625,306.27
  5. Step 5: Solve for x
    x = 1,625,306.27/938.75
  6. Step 6: Final answer
    x = 1,731.35

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.