Home / 3,877.60-5,351.10-2,198.96

Finding the Fourth Proportional to 3,877.60, 5,351.10 and 2,198.96

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Solution

The fourth proportional to 3,877.60, 5,351.10 and 2,198.96 is: 3,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.60 : 5,351.10 = 2,198.96 : x
  2. Step 2: Convert to fraction form
    3,877.60/5,351.10 = 2,198.96/x
  3. Step 3: Cross multiply
    3,877.60x = 5,351.10 × 2,198.96
  4. Step 4: Simplify right side
    3,877.60x = 11,766,854.86
  5. Step 5: Solve for x
    x = 11,766,854.86/3,877.60
  6. Step 6: Final answer
    x = 3,034.57

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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.