Home / 2,192.28-3,288.60-731.43

Finding the Fourth Proportional to 2,192.28, 3,288.60 and 731.43

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Solution

The fourth proportional to 2,192.28, 3,288.60 and 731.43 is: 1,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.28 : 3,288.60 = 731.43 : x
  2. Step 2: Convert to fraction form
    2,192.28/3,288.60 = 731.43/x
  3. Step 3: Cross multiply
    2,192.28x = 3,288.60 × 731.43
  4. Step 4: Simplify right side
    2,192.28x = 2,405,380.70
  5. Step 5: Solve for x
    x = 2,405,380.70/2,192.28
  6. Step 6: Final answer
    x = 1,097.21

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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.