Home / 3,198.42-4,414.77-2,020.28

Finding the Fourth Proportional to 3,198.42, 4,414.77 and 2,020.28

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Solution

The fourth proportional to 3,198.42, 4,414.77 and 2,020.28 is: 2,788.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.42 : 4,414.77 = 2,020.28 : x
  2. Step 2: Convert to fraction form
    3,198.42/4,414.77 = 2,020.28/x
  3. Step 3: Cross multiply
    3,198.42x = 4,414.77 × 2,020.28
  4. Step 4: Simplify right side
    3,198.42x = 8,919,049.46
  5. Step 5: Solve for x
    x = 8,919,049.46/3,198.42
  6. Step 6: Final answer
    x = 2,788.58

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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.