Home / 3,178.80-4,759.92-2,203.44

Finding the Fourth Proportional to 3,178.80, 4,759.92 and 2,203.44

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Solution

The fourth proportional to 3,178.80, 4,759.92 and 2,203.44 is: 3,299.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.80 : 4,759.92 = 2,203.44 : x
  2. Step 2: Convert to fraction form
    3,178.80/4,759.92 = 2,203.44/x
  3. Step 3: Cross multiply
    3,178.80x = 4,759.92 × 2,203.44
  4. Step 4: Simplify right side
    3,178.80x = 10,488,198.12
  5. Step 5: Solve for x
    x = 10,488,198.12/3,178.80
  6. Step 6: Final answer
    x = 3,299.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.