Home / 2,489.91-3,735.45-1,257.27

Finding the Fourth Proportional to 2,489.91, 3,735.45 and 1,257.27

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Solution

The fourth proportional to 2,489.91, 3,735.45 and 1,257.27 is: 1,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.91 : 3,735.45 = 1,257.27 : x
  2. Step 2: Convert to fraction form
    2,489.91/3,735.45 = 1,257.27/x
  3. Step 3: Cross multiply
    2,489.91x = 3,735.45 × 1,257.27
  4. Step 4: Simplify right side
    2,489.91x = 4,696,469.22
  5. Step 5: Solve for x
    x = 4,696,469.22/2,489.91
  6. Step 6: Final answer
    x = 1,886.20

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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.