Home / 3,990.92-5,986.38-1,799.24

Finding the Fourth Proportional to 3,990.92, 5,986.38 and 1,799.24

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Solution

The fourth proportional to 3,990.92, 5,986.38 and 1,799.24 is: 2,698.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.92 : 5,986.38 = 1,799.24 : x
  2. Step 2: Convert to fraction form
    3,990.92/5,986.38 = 1,799.24/x
  3. Step 3: Cross multiply
    3,990.92x = 5,986.38 × 1,799.24
  4. Step 4: Simplify right side
    3,990.92x = 10,770,934.35
  5. Step 5: Solve for x
    x = 10,770,934.35/3,990.92
  6. Step 6: Final answer
    x = 2,698.86

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Similar ratio
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1.5x scale

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.