Home / 2,079.56-3,119.35-1,213.27

Finding the Fourth Proportional to 2,079.56, 3,119.35 and 1,213.27

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Solution

The fourth proportional to 2,079.56, 3,119.35 and 1,213.27 is: 1,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.56 : 3,119.35 = 1,213.27 : x
  2. Step 2: Convert to fraction form
    2,079.56/3,119.35 = 1,213.27/x
  3. Step 3: Cross multiply
    2,079.56x = 3,119.35 × 1,213.27
  4. Step 4: Simplify right side
    2,079.56x = 3,784,602.94
  5. Step 5: Solve for x
    x = 3,784,602.94/2,079.56
  6. Step 6: Final answer
    x = 1,819.90

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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.