Home / 3,391.29-5,076.09-2,211.86

Finding the Fourth Proportional to 3,391.29, 5,076.09 and 2,211.86

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Solution

The fourth proportional to 3,391.29, 5,076.09 and 2,211.86 is: 3,310.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.29 : 5,076.09 = 2,211.86 : x
  2. Step 2: Convert to fraction form
    3,391.29/5,076.09 = 2,211.86/x
  3. Step 3: Cross multiply
    3,391.29x = 5,076.09 × 2,211.86
  4. Step 4: Simplify right side
    3,391.29x = 11,227,575.05
  5. Step 5: Solve for x
    x = 11,227,575.05/3,391.29
  6. Step 6: Final answer
    x = 3,310.71

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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.