Home / 3,489.38-5,234.97-1,149.74

Finding the Fourth Proportional to 3,489.38, 5,234.97 and 1,149.74

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Solution

The fourth proportional to 3,489.38, 5,234.97 and 1,149.74 is: 1,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.38 : 5,234.97 = 1,149.74 : x
  2. Step 2: Convert to fraction form
    3,489.38/5,234.97 = 1,149.74/x
  3. Step 3: Cross multiply
    3,489.38x = 5,234.97 × 1,149.74
  4. Step 4: Simplify right side
    3,489.38x = 6,018,828.23
  5. Step 5: Solve for x
    x = 6,018,828.23/3,489.38
  6. Step 6: Final answer
    x = 1,724.90

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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.