Home / 4,067.61-5,616.49-3,121.91

Finding the Fourth Proportional to 4,067.61, 5,616.49 and 3,121.91

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Solution

The fourth proportional to 4,067.61, 5,616.49 and 3,121.91 is: 4,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,067.61 : 5,616.49 = 3,121.91 : x
  2. Step 2: Convert to fraction form
    4,067.61/5,616.49 = 3,121.91/x
  3. Step 3: Cross multiply
    4,067.61x = 5,616.49 × 3,121.91
  4. Step 4: Simplify right side
    4,067.61x = 17,534,176.30
  5. Step 5: Solve for x
    x = 17,534,176.30/4,067.61
  6. Step 6: Final answer
    x = 4,310.68

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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.