Home / 3,149.98-4,347.19-2,085.92

Finding the Fourth Proportional to 3,149.98, 4,347.19 and 2,085.92

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Solution

The fourth proportional to 3,149.98, 4,347.19 and 2,085.92 is: 2,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.98 : 4,347.19 = 2,085.92 : x
  2. Step 2: Convert to fraction form
    3,149.98/4,347.19 = 2,085.92/x
  3. Step 3: Cross multiply
    3,149.98x = 4,347.19 × 2,085.92
  4. Step 4: Simplify right side
    3,149.98x = 9,067,890.56
  5. Step 5: Solve for x
    x = 9,067,890.56/3,149.98
  6. Step 6: Final answer
    x = 2,878.71

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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.