Home / 3,964.30-5,945.49-1,331.90

Finding the Fourth Proportional to 3,964.30, 5,945.49 and 1,331.90

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Solution

The fourth proportional to 3,964.30, 5,945.49 and 1,331.90 is: 1,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.30 : 5,945.49 = 1,331.90 : x
  2. Step 2: Convert to fraction form
    3,964.30/5,945.49 = 1,331.90/x
  3. Step 3: Cross multiply
    3,964.30x = 5,945.49 × 1,331.90
  4. Step 4: Simplify right side
    3,964.30x = 7,918,798.13
  5. Step 5: Solve for x
    x = 7,918,798.13/3,964.30
  6. Step 6: Final answer
    x = 1,997.53

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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.