Home / 3,414.26-5,121.40-2,315.90

Finding the Fourth Proportional to 3,414.26, 5,121.40 and 2,315.90

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Solution

The fourth proportional to 3,414.26, 5,121.40 and 2,315.90 is: 3,473.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.26 : 5,121.40 = 2,315.90 : x
  2. Step 2: Convert to fraction form
    3,414.26/5,121.40 = 2,315.90/x
  3. Step 3: Cross multiply
    3,414.26x = 5,121.40 × 2,315.90
  4. Step 4: Simplify right side
    3,414.26x = 11,860,650.26
  5. Step 5: Solve for x
    x = 11,860,650.26/3,414.26
  6. Step 6: Final answer
    x = 3,473.86

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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.