Home / 3,972.83-5,481.11-3,377.39

Finding the Fourth Proportional to 3,972.83, 5,481.11 and 3,377.39

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Solution

The fourth proportional to 3,972.83, 5,481.11 and 3,377.39 is: 4,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.83 : 5,481.11 = 3,377.39 : x
  2. Step 2: Convert to fraction form
    3,972.83/5,481.11 = 3,377.39/x
  3. Step 3: Cross multiply
    3,972.83x = 5,481.11 × 3,377.39
  4. Step 4: Simplify right side
    3,972.83x = 18,511,827.14
  5. Step 5: Solve for x
    x = 18,511,827.14/3,972.83
  6. Step 6: Final answer
    x = 4,659.61

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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.