Home / 3,853.68-5,781.30-1,255.92

Finding the Fourth Proportional to 3,853.68, 5,781.30 and 1,255.92

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Solution

The fourth proportional to 3,853.68, 5,781.30 and 1,255.92 is: 1,884.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.68 : 5,781.30 = 1,255.92 : x
  2. Step 2: Convert to fraction form
    3,853.68/5,781.30 = 1,255.92/x
  3. Step 3: Cross multiply
    3,853.68x = 5,781.30 × 1,255.92
  4. Step 4: Simplify right side
    3,853.68x = 7,260,850.30
  5. Step 5: Solve for x
    x = 7,260,850.30/3,853.68
  6. Step 6: Final answer
    x = 1,884.13

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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.