Home / 1,481.14-2,221.17-615.52

Finding the Fourth Proportional to 1,481.14, 2,221.17 and 615.52

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Solution

The fourth proportional to 1,481.14, 2,221.17 and 615.52 is: 923.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.14 : 2,221.17 = 615.52 : x
  2. Step 2: Convert to fraction form
    1,481.14/2,221.17 = 615.52/x
  3. Step 3: Cross multiply
    1,481.14x = 2,221.17 × 615.52
  4. Step 4: Simplify right side
    1,481.14x = 1,367,174.56
  5. Step 5: Solve for x
    x = 1,367,174.56/1,481.14
  6. Step 6: Final answer
    x = 923.06

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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.