Home / 4,191.28-6,286.09-2,080.71

Finding the Fourth Proportional to 4,191.28, 6,286.09 and 2,080.71

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Solution

The fourth proportional to 4,191.28, 6,286.09 and 2,080.71 is: 3,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.28 : 6,286.09 = 2,080.71 : x
  2. Step 2: Convert to fraction form
    4,191.28/6,286.09 = 2,080.71/x
  3. Step 3: Cross multiply
    4,191.28x = 6,286.09 × 2,080.71
  4. Step 4: Simplify right side
    4,191.28x = 13,079,488.49
  5. Step 5: Solve for x
    x = 13,079,488.49/4,191.28
  6. Step 6: Final answer
    x = 3,120.64

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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.