Home / 7,524.31-11,286.49-3,139.38

Finding the Fourth Proportional to 7,524.31, 11,286.49 and 3,139.38

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Solution

The fourth proportional to 7,524.31, 11,286.49 and 3,139.38 is: 4,709.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,524.31 : 11,286.49 = 3,139.38 : x
  2. Step 2: Convert to fraction form
    7,524.31/11,286.49 = 3,139.38/x
  3. Step 3: Cross multiply
    7,524.31x = 11,286.49 × 3,139.38
  4. Step 4: Simplify right side
    7,524.31x = 35,432,580.98
  5. Step 5: Solve for x
    x = 35,432,580.98/7,524.31
  6. Step 6: Final answer
    x = 4,709.08

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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.