Home / 3,247.29-4,481.73-2,129.90

Finding the Fourth Proportional to 3,247.29, 4,481.73 and 2,129.90

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Solution

The fourth proportional to 3,247.29, 4,481.73 and 2,129.90 is: 2,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.29 : 4,481.73 = 2,129.90 : x
  2. Step 2: Convert to fraction form
    3,247.29/4,481.73 = 2,129.90/x
  3. Step 3: Cross multiply
    3,247.29x = 4,481.73 × 2,129.90
  4. Step 4: Simplify right side
    3,247.29x = 9,545,614.32
  5. Step 5: Solve for x
    x = 9,545,614.32/3,247.29
  6. Step 6: Final answer
    x = 2,939.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.