Home / 6,138.38-9,208.17-2,439.78

Finding the Fourth Proportional to 6,138.38, 9,208.17 and 2,439.78

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Solution

The fourth proportional to 6,138.38, 9,208.17 and 2,439.78 is: 3,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.38 : 9,208.17 = 2,439.78 : x
  2. Step 2: Convert to fraction form
    6,138.38/9,208.17 = 2,439.78/x
  3. Step 3: Cross multiply
    6,138.38x = 9,208.17 × 2,439.78
  4. Step 4: Simplify right side
    6,138.38x = 22,465,909.00
  5. Step 5: Solve for x
    x = 22,465,909.00/6,138.38
  6. Step 6: Final answer
    x = 3,659.91

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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.