Home / 3,966.90-5,474.04-2,198.52

Finding the Fourth Proportional to 3,966.90, 5,474.04 and 2,198.52

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Solution

The fourth proportional to 3,966.90, 5,474.04 and 2,198.52 is: 3,033.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.90 : 5,474.04 = 2,198.52 : x
  2. Step 2: Convert to fraction form
    3,966.90/5,474.04 = 2,198.52/x
  3. Step 3: Cross multiply
    3,966.90x = 5,474.04 × 2,198.52
  4. Step 4: Simplify right side
    3,966.90x = 12,034,786.42
  5. Step 5: Solve for x
    x = 12,034,786.42/3,966.90
  6. Step 6: Final answer
    x = 3,033.80

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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.