Home / 2,781.43-4,151.85-2,575.87

Finding the Fourth Proportional to 2,781.43, 4,151.85 and 2,575.87

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Solution

The fourth proportional to 2,781.43, 4,151.85 and 2,575.87 is: 3,845.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.43 : 4,151.85 = 2,575.87 : x
  2. Step 2: Convert to fraction form
    2,781.43/4,151.85 = 2,575.87/x
  3. Step 3: Cross multiply
    2,781.43x = 4,151.85 × 2,575.87
  4. Step 4: Simplify right side
    2,781.43x = 10,694,625.86
  5. Step 5: Solve for x
    x = 10,694,625.86/2,781.43
  6. Step 6: Final answer
    x = 3,845.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.