Home / 3,378.38-5,067.56-1,069.88

Finding the Fourth Proportional to 3,378.38, 5,067.56 and 1,069.88

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Solution

The fourth proportional to 3,378.38, 5,067.56 and 1,069.88 is: 1,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.38 : 5,067.56 = 1,069.88 : x
  2. Step 2: Convert to fraction form
    3,378.38/5,067.56 = 1,069.88/x
  3. Step 3: Cross multiply
    3,378.38x = 5,067.56 × 1,069.88
  4. Step 4: Simplify right side
    3,378.38x = 5,421,658.43
  5. Step 5: Solve for x
    x = 5,421,658.43/3,378.38
  6. Step 6: Final answer
    x = 1,604.81

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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.