Home / 7,490.11-11,236.61-2,872.75

Finding the Fourth Proportional to 7,490.11, 11,236.61 and 2,872.75

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Solution

The fourth proportional to 7,490.11, 11,236.61 and 2,872.75 is: 4,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.11 : 11,236.61 = 2,872.75 : x
  2. Step 2: Convert to fraction form
    7,490.11/11,236.61 = 2,872.75/x
  3. Step 3: Cross multiply
    7,490.11x = 11,236.61 × 2,872.75
  4. Step 4: Simplify right side
    7,490.11x = 32,279,971.38
  5. Step 5: Solve for x
    x = 32,279,971.38/7,490.11
  6. Step 6: Final answer
    x = 4,309.68

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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.