Home / 2,500.86-3,451.17-1,381.77

Finding the Fourth Proportional to 2,500.86, 3,451.17 and 1,381.77

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Solution

The fourth proportional to 2,500.86, 3,451.17 and 1,381.77 is: 1,906.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.86 : 3,451.17 = 1,381.77 : x
  2. Step 2: Convert to fraction form
    2,500.86/3,451.17 = 1,381.77/x
  3. Step 3: Cross multiply
    2,500.86x = 3,451.17 × 1,381.77
  4. Step 4: Simplify right side
    2,500.86x = 4,768,723.17
  5. Step 5: Solve for x
    x = 4,768,723.17/2,500.86
  6. Step 6: Final answer
    x = 1,906.83

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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.