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Finding the Fourth Proportional to 7,079.56, 10,619.34 and 3,179.41

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Solution

The fourth proportional to 7,079.56, 10,619.34 and 3,179.41 is: 4,769.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.56 : 10,619.34 = 3,179.41 : x
  2. Step 2: Convert to fraction form
    7,079.56/10,619.34 = 3,179.41/x
  3. Step 3: Cross multiply
    7,079.56x = 10,619.34 × 3,179.41
  4. Step 4: Simplify right side
    7,079.56x = 33,763,235.79
  5. Step 5: Solve for x
    x = 33,763,235.79/7,079.56
  6. Step 6: Final answer
    x = 4,769.12

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Similar ratio
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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.