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Finding the Fourth Proportional to 3,169.88, 4,754.80 and 1,879.52

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Solution

The fourth proportional to 3,169.88, 4,754.80 and 1,879.52 is: 2,819.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.88 : 4,754.80 = 1,879.52 : x
  2. Step 2: Convert to fraction form
    3,169.88/4,754.80 = 1,879.52/x
  3. Step 3: Cross multiply
    3,169.88x = 4,754.80 × 1,879.52
  4. Step 4: Simplify right side
    3,169.88x = 8,936,741.70
  5. Step 5: Solve for x
    x = 8,936,741.70/3,169.88
  6. Step 6: Final answer
    x = 2,819.27

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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.