Home / 3,519.86-5,279.79-1,179.44

Finding the Fourth Proportional to 3,519.86, 5,279.79 and 1,179.44

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Solution

The fourth proportional to 3,519.86, 5,279.79 and 1,179.44 is: 1,769.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.86 : 5,279.79 = 1,179.44 : x
  2. Step 2: Convert to fraction form
    3,519.86/5,279.79 = 1,179.44/x
  3. Step 3: Cross multiply
    3,519.86x = 5,279.79 × 1,179.44
  4. Step 4: Simplify right side
    3,519.86x = 6,227,169.12
  5. Step 5: Solve for x
    x = 6,227,169.12/3,519.86
  6. Step 6: Final answer
    x = 1,769.15

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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.