Home / 3,147.90-4,721.57-1,067.86

Finding the Fourth Proportional to 3,147.90, 4,721.57 and 1,067.86

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Solution

The fourth proportional to 3,147.90, 4,721.57 and 1,067.86 is: 1,601.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.90 : 4,721.57 = 1,067.86 : x
  2. Step 2: Convert to fraction form
    3,147.90/4,721.57 = 1,067.86/x
  3. Step 3: Cross multiply
    3,147.90x = 4,721.57 × 1,067.86
  4. Step 4: Simplify right side
    3,147.90x = 5,041,952.13
  5. Step 5: Solve for x
    x = 5,041,952.13/3,147.90
  6. Step 6: Final answer
    x = 1,601.69

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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.