Home / 3,889.70-5,819.97-2,159.54

Finding the Fourth Proportional to 3,889.70, 5,819.97 and 2,159.54

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Solution

The fourth proportional to 3,889.70, 5,819.97 and 2,159.54 is: 3,231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.70 : 5,819.97 = 2,159.54 : x
  2. Step 2: Convert to fraction form
    3,889.70/5,819.97 = 2,159.54/x
  3. Step 3: Cross multiply
    3,889.70x = 5,819.97 × 2,159.54
  4. Step 4: Simplify right side
    3,889.70x = 12,568,458.01
  5. Step 5: Solve for x
    x = 12,568,458.01/3,889.70
  6. Step 6: Final answer
    x = 3,231.22

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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.