Home / 3,712.91-5,591.40-3,231.77

Finding the Fourth Proportional to 3,712.91, 5,591.40 and 3,231.77

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Solution

The fourth proportional to 3,712.91, 5,591.40 and 3,231.77 is: 4,866.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.91 : 5,591.40 = 3,231.77 : x
  2. Step 2: Convert to fraction form
    3,712.91/5,591.40 = 3,231.77/x
  3. Step 3: Cross multiply
    3,712.91x = 5,591.40 × 3,231.77
  4. Step 4: Simplify right side
    3,712.91x = 18,070,078.70
  5. Step 5: Solve for x
    x = 18,070,078.70/3,712.91
  6. Step 6: Final answer
    x = 4,866.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.