Home / 2,252.20-3,108-1,257.44

Finding the Fourth Proportional to 2,252.20, 3,108 and 1,257.44

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Solution

The fourth proportional to 2,252.20, 3,108 and 1,257.44 is: 1,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.20 : 3,108 = 1,257.44 : x
  2. Step 2: Convert to fraction form
    2,252.20/3,108 = 1,257.44/x
  3. Step 3: Cross multiply
    2,252.20x = 3,108 × 1,257.44
  4. Step 4: Simplify right side
    2,252.20x = 3,908,123.52
  5. Step 5: Solve for x
    x = 3,908,123.52/2,252.20
  6. Step 6: Final answer
    x = 1,735.25

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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.