Home / 3,967.28-5,474.79-2,198.85

Finding the Fourth Proportional to 3,967.28, 5,474.79 and 2,198.85

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Solution

The fourth proportional to 3,967.28, 5,474.79 and 2,198.85 is: 3,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.28 : 5,474.79 = 2,198.85 : x
  2. Step 2: Convert to fraction form
    3,967.28/5,474.79 = 2,198.85/x
  3. Step 3: Cross multiply
    3,967.28x = 5,474.79 × 2,198.85
  4. Step 4: Simplify right side
    3,967.28x = 12,038,221.46
  5. Step 5: Solve for x
    x = 12,038,221.46/3,967.28
  6. Step 6: Final answer
    x = 3,034.38

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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.