Home / 3,965.31-5,945.96-1,331.88

Finding the Fourth Proportional to 3,965.31, 5,945.96 and 1,331.88

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Solution

The fourth proportional to 3,965.31, 5,945.96 and 1,331.88 is: 1,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.31 : 5,945.96 = 1,331.88 : x
  2. Step 2: Convert to fraction form
    3,965.31/5,945.96 = 1,331.88/x
  3. Step 3: Cross multiply
    3,965.31x = 5,945.96 × 1,331.88
  4. Step 4: Simplify right side
    3,965.31x = 7,919,298.55
  5. Step 5: Solve for x
    x = 7,919,298.55/3,965.31
  6. Step 6: Final answer
    x = 1,997.14

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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.