Home / 2,092.38-3,136.18-858.20

Finding the Fourth Proportional to 2,092.38, 3,136.18 and 858.20

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Solution

The fourth proportional to 2,092.38, 3,136.18 and 858.20 is: 1,286.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.38 : 3,136.18 = 858.20 : x
  2. Step 2: Convert to fraction form
    2,092.38/3,136.18 = 858.20/x
  3. Step 3: Cross multiply
    2,092.38x = 3,136.18 × 858.20
  4. Step 4: Simplify right side
    2,092.38x = 2,691,469.68
  5. Step 5: Solve for x
    x = 2,691,469.68/2,092.38
  6. Step 6: Final answer
    x = 1,286.32

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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.