Home / 7,290.20-10,932.57-3,391.88

Finding the Fourth Proportional to 7,290.20, 10,932.57 and 3,391.88

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Solution

The fourth proportional to 7,290.20, 10,932.57 and 3,391.88 is: 5,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.20 : 10,932.57 = 3,391.88 : x
  2. Step 2: Convert to fraction form
    7,290.20/10,932.57 = 3,391.88/x
  3. Step 3: Cross multiply
    7,290.20x = 10,932.57 × 3,391.88
  4. Step 4: Simplify right side
    7,290.20x = 37,081,910.87
  5. Step 5: Solve for x
    x = 37,081,910.87/7,290.20
  6. Step 6: Final answer
    x = 5,086.54

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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.