Home / 7,938.27-11,912.89-2,744.15

Finding the Fourth Proportional to 7,938.27, 11,912.89 and 2,744.15

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Solution

The fourth proportional to 7,938.27, 11,912.89 and 2,744.15 is: 4,118.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.27 : 11,912.89 = 2,744.15 : x
  2. Step 2: Convert to fraction form
    7,938.27/11,912.89 = 2,744.15/x
  3. Step 3: Cross multiply
    7,938.27x = 11,912.89 × 2,744.15
  4. Step 4: Simplify right side
    7,938.27x = 32,690,757.09
  5. Step 5: Solve for x
    x = 32,690,757.09/7,938.27
  6. Step 6: Final answer
    x = 4,118.12

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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.