Home / 5,474.20-8,217.24-2,189.56

Finding the Fourth Proportional to 5,474.20, 8,217.24 and 2,189.56

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Solution

The fourth proportional to 5,474.20, 8,217.24 and 2,189.56 is: 3,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.20 : 8,217.24 = 2,189.56 : x
  2. Step 2: Convert to fraction form
    5,474.20/8,217.24 = 2,189.56/x
  3. Step 3: Cross multiply
    5,474.20x = 8,217.24 × 2,189.56
  4. Step 4: Simplify right side
    5,474.20x = 17,992,140.01
  5. Step 5: Solve for x
    x = 17,992,140.01/5,474.20
  6. Step 6: Final answer
    x = 3,286.72

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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.