Home / 3,964.38-5,945.94-1,331.61

Finding the Fourth Proportional to 3,964.38, 5,945.94 and 1,331.61

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Solution

The fourth proportional to 3,964.38, 5,945.94 and 1,331.61 is: 1,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.38 : 5,945.94 = 1,331.61 : x
  2. Step 2: Convert to fraction form
    3,964.38/5,945.94 = 1,331.61/x
  3. Step 3: Cross multiply
    3,964.38x = 5,945.94 × 1,331.61
  4. Step 4: Simplify right side
    3,964.38x = 7,917,673.16
  5. Step 5: Solve for x
    x = 7,917,673.16/3,964.38
  6. Step 6: Final answer
    x = 1,997.20

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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.