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Finding the Fourth Proportional to 637.64, 951.25 and 607.40

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Solution

The fourth proportional to 637.64, 951.25 and 607.40 is: 906.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.64 : 951.25 = 607.40 : x
  2. Step 2: Convert to fraction form
    637.64/951.25 = 607.40/x
  3. Step 3: Cross multiply
    637.64x = 951.25 × 607.40
  4. Step 4: Simplify right side
    637.64x = 577,789.25
  5. Step 5: Solve for x
    x = 577,789.25/637.64
  6. Step 6: Final answer
    x = 906.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.