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Finding the Fourth Proportional to 3,337.52, 5,006.28 and 872.56

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Solution

The fourth proportional to 3,337.52, 5,006.28 and 872.56 is: 1,308.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,337.52 : 5,006.28 = 872.56 : x
  2. Step 2: Convert to fraction form
    3,337.52/5,006.28 = 872.56/x
  3. Step 3: Cross multiply
    3,337.52x = 5,006.28 × 872.56
  4. Step 4: Simplify right side
    3,337.52x = 4,368,279.68
  5. Step 5: Solve for x
    x = 4,368,279.68/3,337.52
  6. Step 6: Final answer
    x = 1,308.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.