Home / 2,257.38-3,115.02-1,262.43

Finding the Fourth Proportional to 2,257.38, 3,115.02 and 1,262.43

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Solution

The fourth proportional to 2,257.38, 3,115.02 and 1,262.43 is: 1,742.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.38 : 3,115.02 = 1,262.43 : x
  2. Step 2: Convert to fraction form
    2,257.38/3,115.02 = 1,262.43/x
  3. Step 3: Cross multiply
    2,257.38x = 3,115.02 × 1,262.43
  4. Step 4: Simplify right side
    2,257.38x = 3,932,494.70
  5. Step 5: Solve for x
    x = 3,932,494.70/2,257.38
  6. Step 6: Final answer
    x = 1,742.06

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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.