Home / 2,136.24-3,186.95-2,081.97

Finding the Fourth Proportional to 2,136.24, 3,186.95 and 2,081.97

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Solution

The fourth proportional to 2,136.24, 3,186.95 and 2,081.97 is: 3,105.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.24 : 3,186.95 = 2,081.97 : x
  2. Step 2: Convert to fraction form
    2,136.24/3,186.95 = 2,081.97/x
  3. Step 3: Cross multiply
    2,136.24x = 3,186.95 × 2,081.97
  4. Step 4: Simplify right side
    2,136.24x = 6,635,123.88
  5. Step 5: Solve for x
    x = 6,635,123.88/2,136.24
  6. Step 6: Final answer
    x = 3,105.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.