Home / 3,998.11-5,517.42-2,229.83

Finding the Fourth Proportional to 3,998.11, 5,517.42 and 2,229.83

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Solution

The fourth proportional to 3,998.11, 5,517.42 and 2,229.83 is: 3,077.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.11 : 5,517.42 = 2,229.83 : x
  2. Step 2: Convert to fraction form
    3,998.11/5,517.42 = 2,229.83/x
  3. Step 3: Cross multiply
    3,998.11x = 5,517.42 × 2,229.83
  4. Step 4: Simplify right side
    3,998.11x = 12,302,869.90
  5. Step 5: Solve for x
    x = 12,302,869.90/3,998.11
  6. Step 6: Final answer
    x = 3,077.17

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.