Home / 6,171.68-8,517.48-3,519.20

Finding the Fourth Proportional to 6,171.68, 8,517.48 and 3,519.20

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Solution

The fourth proportional to 6,171.68, 8,517.48 and 3,519.20 is: 4,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,171.68 : 8,517.48 = 3,519.20 : x
  2. Step 2: Convert to fraction form
    6,171.68/8,517.48 = 3,519.20/x
  3. Step 3: Cross multiply
    6,171.68x = 8,517.48 × 3,519.20
  4. Step 4: Simplify right side
    6,171.68x = 29,974,715.62
  5. Step 5: Solve for x
    x = 29,974,715.62/6,171.68
  6. Step 6: Final answer
    x = 4,856.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.