Home / 3,967.30-5,474.46-2,198.86

Finding the Fourth Proportional to 3,967.30, 5,474.46 and 2,198.86

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Solution

The fourth proportional to 3,967.30, 5,474.46 and 2,198.86 is: 3,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.30 : 5,474.46 = 2,198.86 : x
  2. Step 2: Convert to fraction form
    3,967.30/5,474.46 = 2,198.86/x
  3. Step 3: Cross multiply
    3,967.30x = 5,474.46 × 2,198.86
  4. Step 4: Simplify right side
    3,967.30x = 12,037,571.12
  5. Step 5: Solve for x
    x = 12,037,571.12/3,967.30
  6. Step 6: Final answer
    x = 3,034.20

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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.