Home / 3,414.45-5,117.99-1,439.61

Finding the Fourth Proportional to 3,414.45, 5,117.99 and 1,439.61

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Solution

The fourth proportional to 3,414.45, 5,117.99 and 1,439.61 is: 2,157.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.45 : 5,117.99 = 1,439.61 : x
  2. Step 2: Convert to fraction form
    3,414.45/5,117.99 = 1,439.61/x
  3. Step 3: Cross multiply
    3,414.45x = 5,117.99 × 1,439.61
  4. Step 4: Simplify right side
    3,414.45x = 7,367,883.19
  5. Step 5: Solve for x
    x = 7,367,883.19/3,414.45
  6. Step 6: Final answer
    x = 2,157.85

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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.