Home / 3,198.26-4,409.16-2,487.90

Finding the Fourth Proportional to 3,198.26, 4,409.16 and 2,487.90

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Solution

The fourth proportional to 3,198.26, 4,409.16 and 2,487.90 is: 3,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.26 : 4,409.16 = 2,487.90 : x
  2. Step 2: Convert to fraction form
    3,198.26/4,409.16 = 2,487.90/x
  3. Step 3: Cross multiply
    3,198.26x = 4,409.16 × 2,487.90
  4. Step 4: Simplify right side
    3,198.26x = 10,969,549.16
  5. Step 5: Solve for x
    x = 10,969,549.16/3,198.26
  6. Step 6: Final answer
    x = 3,429.85

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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.