Home / 2,640.39-3,958.92-2,248.86

Finding the Fourth Proportional to 2,640.39, 3,958.92 and 2,248.86

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Solution

The fourth proportional to 2,640.39, 3,958.92 and 2,248.86 is: 3,371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.39 : 3,958.92 = 2,248.86 : x
  2. Step 2: Convert to fraction form
    2,640.39/3,958.92 = 2,248.86/x
  3. Step 3: Cross multiply
    2,640.39x = 3,958.92 × 2,248.86
  4. Step 4: Simplify right side
    2,640.39x = 8,903,045.59
  5. Step 5: Solve for x
    x = 8,903,045.59/2,640.39
  6. Step 6: Final answer
    x = 3,371.87

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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.