Home / 2,257.32-3,115.36-1,262.85

Finding the Fourth Proportional to 2,257.32, 3,115.36 and 1,262.85

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Solution

The fourth proportional to 2,257.32, 3,115.36 and 1,262.85 is: 1,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.32 : 3,115.36 = 1,262.85 : x
  2. Step 2: Convert to fraction form
    2,257.32/3,115.36 = 1,262.85/x
  3. Step 3: Cross multiply
    2,257.32x = 3,115.36 × 1,262.85
  4. Step 4: Simplify right side
    2,257.32x = 3,934,232.38
  5. Step 5: Solve for x
    x = 3,934,232.38/2,257.32
  6. Step 6: Final answer
    x = 1,742.88

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Double scale
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1.5x scale

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.