Home / 5,414.75-8,120.39-1,716.11

Finding the Fourth Proportional to 5,414.75, 8,120.39 and 1,716.11

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Solution

The fourth proportional to 5,414.75, 8,120.39 and 1,716.11 is: 2,573.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.75 : 8,120.39 = 1,716.11 : x
  2. Step 2: Convert to fraction form
    5,414.75/8,120.39 = 1,716.11/x
  3. Step 3: Cross multiply
    5,414.75x = 8,120.39 × 1,716.11
  4. Step 4: Simplify right side
    5,414.75x = 13,935,496.55
  5. Step 5: Solve for x
    x = 13,935,496.55/5,414.75
  6. Step 6: Final answer
    x = 2,573.62

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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.