Home / 3,439.92-5,162.61-1,249.28

Finding the Fourth Proportional to 3,439.92, 5,162.61 and 1,249.28

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Solution

The fourth proportional to 3,439.92, 5,162.61 and 1,249.28 is: 1,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.92 : 5,162.61 = 1,249.28 : x
  2. Step 2: Convert to fraction form
    3,439.92/5,162.61 = 1,249.28/x
  3. Step 3: Cross multiply
    3,439.92x = 5,162.61 × 1,249.28
  4. Step 4: Simplify right side
    3,439.92x = 6,449,545.42
  5. Step 5: Solve for x
    x = 6,449,545.42/3,439.92
  6. Step 6: Final answer
    x = 1,874.91

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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.