Home / 3,930.30-5,422.44-2,250.54

Finding the Fourth Proportional to 3,930.30, 5,422.44 and 2,250.54

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Solution

The fourth proportional to 3,930.30, 5,422.44 and 2,250.54 is: 3,104.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.30 : 5,422.44 = 2,250.54 : x
  2. Step 2: Convert to fraction form
    3,930.30/5,422.44 = 2,250.54/x
  3. Step 3: Cross multiply
    3,930.30x = 5,422.44 × 2,250.54
  4. Step 4: Simplify right side
    3,930.30x = 12,203,418.12
  5. Step 5: Solve for x
    x = 12,203,418.12/3,930.30
  6. Step 6: Final answer
    x = 3,104.96

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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.