Home / 3,011.28-4,516.92-1,279.68

Finding the Fourth Proportional to 3,011.28, 4,516.92 and 1,279.68

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Solution

The fourth proportional to 3,011.28, 4,516.92 and 1,279.68 is: 1,919.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.28 : 4,516.92 = 1,279.68 : x
  2. Step 2: Convert to fraction form
    3,011.28/4,516.92 = 1,279.68/x
  3. Step 3: Cross multiply
    3,011.28x = 4,516.92 × 1,279.68
  4. Step 4: Simplify right side
    3,011.28x = 5,780,212.19
  5. Step 5: Solve for x
    x = 5,780,212.19/3,011.28
  6. Step 6: Final answer
    x = 1,919.52

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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.