Home / 2,691.38-4,037.27-743.57

Finding the Fourth Proportional to 2,691.38, 4,037.27 and 743.57

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Solution

The fourth proportional to 2,691.38, 4,037.27 and 743.57 is: 1,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.38 : 4,037.27 = 743.57 : x
  2. Step 2: Convert to fraction form
    2,691.38/4,037.27 = 743.57/x
  3. Step 3: Cross multiply
    2,691.38x = 4,037.27 × 743.57
  4. Step 4: Simplify right side
    2,691.38x = 3,001,972.67
  5. Step 5: Solve for x
    x = 3,001,972.67/2,691.38
  6. Step 6: Final answer
    x = 1,115.40

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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.