Home / 3,469.31-5,216.45-3,198.71

Finding the Fourth Proportional to 3,469.31, 5,216.45 and 3,198.71

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Solution

The fourth proportional to 3,469.31, 5,216.45 and 3,198.71 is: 4,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.31 : 5,216.45 = 3,198.71 : x
  2. Step 2: Convert to fraction form
    3,469.31/5,216.45 = 3,198.71/x
  3. Step 3: Cross multiply
    3,469.31x = 5,216.45 × 3,198.71
  4. Step 4: Simplify right side
    3,469.31x = 16,685,868.70
  5. Step 5: Solve for x
    x = 16,685,868.70/3,469.31
  6. Step 6: Final answer
    x = 4,809.57

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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.