Home / 2,229.27-3,343.91-1,311.23

Finding the Fourth Proportional to 2,229.27, 3,343.91 and 1,311.23

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Solution

The fourth proportional to 2,229.27, 3,343.91 and 1,311.23 is: 1,966.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.27 : 3,343.91 = 1,311.23 : x
  2. Step 2: Convert to fraction form
    2,229.27/3,343.91 = 1,311.23/x
  3. Step 3: Cross multiply
    2,229.27x = 3,343.91 × 1,311.23
  4. Step 4: Simplify right side
    2,229.27x = 4,384,611.83
  5. Step 5: Solve for x
    x = 4,384,611.83/2,229.27
  6. Step 6: Final answer
    x = 1,966.84

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Half scale
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Double scale
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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.