Home / 7,956.30-11,938.50-3,279.90

Finding the Fourth Proportional to 7,956.30, 11,938.50 and 3,279.90

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Solution

The fourth proportional to 7,956.30, 11,938.50 and 3,279.90 is: 4,921.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.30 : 11,938.50 = 3,279.90 : x
  2. Step 2: Convert to fraction form
    7,956.30/11,938.50 = 3,279.90/x
  3. Step 3: Cross multiply
    7,956.30x = 11,938.50 × 3,279.90
  4. Step 4: Simplify right side
    7,956.30x = 39,157,086.15
  5. Step 5: Solve for x
    x = 39,157,086.15/7,956.30
  6. Step 6: Final answer
    x = 4,921.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.