Home / 3,930.56-5,424.52-2,252.50

Finding the Fourth Proportional to 3,930.56, 5,424.52 and 2,252.50

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Solution

The fourth proportional to 3,930.56, 5,424.52 and 2,252.50 is: 3,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.56 : 5,424.52 = 2,252.50 : x
  2. Step 2: Convert to fraction form
    3,930.56/5,424.52 = 2,252.50/x
  3. Step 3: Cross multiply
    3,930.56x = 5,424.52 × 2,252.50
  4. Step 4: Simplify right side
    3,930.56x = 12,218,731.30
  5. Step 5: Solve for x
    x = 12,218,731.30/3,930.56
  6. Step 6: Final answer
    x = 3,108.65

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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.