Home / 2,287.38-3,431.19-727.52

Finding the Fourth Proportional to 2,287.38, 3,431.19 and 727.52

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Solution

The fourth proportional to 2,287.38, 3,431.19 and 727.52 is: 1,091.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.38 : 3,431.19 = 727.52 : x
  2. Step 2: Convert to fraction form
    2,287.38/3,431.19 = 727.52/x
  3. Step 3: Cross multiply
    2,287.38x = 3,431.19 × 727.52
  4. Step 4: Simplify right side
    2,287.38x = 2,496,244.92
  5. Step 5: Solve for x
    x = 2,496,244.92/2,287.38
  6. Step 6: Final answer
    x = 1,091.31

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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.