Home / 3,198.62-4,414.65-2,020.34

Finding the Fourth Proportional to 3,198.62, 4,414.65 and 2,020.34

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Solution

The fourth proportional to 3,198.62, 4,414.65 and 2,020.34 is: 2,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.62 : 4,414.65 = 2,020.34 : x
  2. Step 2: Convert to fraction form
    3,198.62/4,414.65 = 2,020.34/x
  3. Step 3: Cross multiply
    3,198.62x = 4,414.65 × 2,020.34
  4. Step 4: Simplify right side
    3,198.62x = 8,919,093.98
  5. Step 5: Solve for x
    x = 8,919,093.98/3,198.62
  6. Step 6: Final answer
    x = 2,788.42

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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.