Home / 3,879.50-5,819.38-1,539.94

Finding the Fourth Proportional to 3,879.50, 5,819.38 and 1,539.94

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Solution

The fourth proportional to 3,879.50, 5,819.38 and 1,539.94 is: 2,309.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.50 : 5,819.38 = 1,539.94 : x
  2. Step 2: Convert to fraction form
    3,879.50/5,819.38 = 1,539.94/x
  3. Step 3: Cross multiply
    3,879.50x = 5,819.38 × 1,539.94
  4. Step 4: Simplify right side
    3,879.50x = 8,961,496.04
  5. Step 5: Solve for x
    x = 8,961,496.04/3,879.50
  6. Step 6: Final answer
    x = 2,309.96

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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.