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Finding the Fourth Proportional to 6,425.38, 8,865.40 and 3,772.27

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Solution

The fourth proportional to 6,425.38, 8,865.40 and 3,772.27 is: 5,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.38 : 8,865.40 = 3,772.27 : x
  2. Step 2: Convert to fraction form
    6,425.38/8,865.40 = 3,772.27/x
  3. Step 3: Cross multiply
    6,425.38x = 8,865.40 × 3,772.27
  4. Step 4: Simplify right side
    6,425.38x = 33,442,691.18
  5. Step 5: Solve for x
    x = 33,442,691.18/6,425.38
  6. Step 6: Final answer
    x = 5,204.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.