Home / 4,149.60-5,726.20-2,379.92

Finding the Fourth Proportional to 4,149.60, 5,726.20 and 2,379.92

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Solution

The fourth proportional to 4,149.60, 5,726.20 and 2,379.92 is: 3,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,149.60 : 5,726.20 = 2,379.92 : x
  2. Step 2: Convert to fraction form
    4,149.60/5,726.20 = 2,379.92/x
  3. Step 3: Cross multiply
    4,149.60x = 5,726.20 × 2,379.92
  4. Step 4: Simplify right side
    4,149.60x = 13,627,897.90
  5. Step 5: Solve for x
    x = 13,627,897.90/4,149.60
  6. Step 6: Final answer
    x = 3,284.15

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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.