Home / 3,414.12-5,120.25-1,465.87

Finding the Fourth Proportional to 3,414.12, 5,120.25 and 1,465.87

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Solution

The fourth proportional to 3,414.12, 5,120.25 and 1,465.87 is: 2,198.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.12 : 5,120.25 = 1,465.87 : x
  2. Step 2: Convert to fraction form
    3,414.12/5,120.25 = 1,465.87/x
  3. Step 3: Cross multiply
    3,414.12x = 5,120.25 × 1,465.87
  4. Step 4: Simplify right side
    3,414.12x = 7,505,620.87
  5. Step 5: Solve for x
    x = 7,505,620.87/3,414.12
  6. Step 6: Final answer
    x = 2,198.41

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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.