Home / 3,132.30-4,309.62-2,381.88

Finding the Fourth Proportional to 3,132.30, 4,309.62 and 2,381.88

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Solution

The fourth proportional to 3,132.30, 4,309.62 and 2,381.88 is: 3,277.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.30 : 4,309.62 = 2,381.88 : x
  2. Step 2: Convert to fraction form
    3,132.30/4,309.62 = 2,381.88/x
  3. Step 3: Cross multiply
    3,132.30x = 4,309.62 × 2,381.88
  4. Step 4: Simplify right side
    3,132.30x = 10,264,997.69
  5. Step 5: Solve for x
    x = 10,264,997.69/3,132.30
  6. Step 6: Final answer
    x = 3,277.14

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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.