Home / 3,067.40-4,231.46-2,005.79

Finding the Fourth Proportional to 3,067.40, 4,231.46 and 2,005.79

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Solution

The fourth proportional to 3,067.40, 4,231.46 and 2,005.79 is: 2,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,067.40 : 4,231.46 = 2,005.79 : x
  2. Step 2: Convert to fraction form
    3,067.40/4,231.46 = 2,005.79/x
  3. Step 3: Cross multiply
    3,067.40x = 4,231.46 × 2,005.79
  4. Step 4: Simplify right side
    3,067.40x = 8,487,404.01
  5. Step 5: Solve for x
    x = 8,487,404.01/3,067.40
  6. Step 6: Final answer
    x = 2,766.97

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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.