Home / 3,964.61-5,947.17-1,331.91

Finding the Fourth Proportional to 3,964.61, 5,947.17 and 1,331.91

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Solution

The fourth proportional to 3,964.61, 5,947.17 and 1,331.91 is: 1,997.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.61 : 5,947.17 = 1,331.91 : x
  2. Step 2: Convert to fraction form
    3,964.61/5,947.17 = 1,331.91/x
  3. Step 3: Cross multiply
    3,964.61x = 5,947.17 × 1,331.91
  4. Step 4: Simplify right side
    3,964.61x = 7,921,095.19
  5. Step 5: Solve for x
    x = 7,921,095.19/3,964.61
  6. Step 6: Final answer
    x = 1,997.95

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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.