Home / 3,279.82-4,912.34-1,889.86

Finding the Fourth Proportional to 3,279.82, 4,912.34 and 1,889.86

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Solution

The fourth proportional to 3,279.82, 4,912.34 and 1,889.86 is: 2,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.82 : 4,912.34 = 1,889.86 : x
  2. Step 2: Convert to fraction form
    3,279.82/4,912.34 = 1,889.86/x
  3. Step 3: Cross multiply
    3,279.82x = 4,912.34 × 1,889.86
  4. Step 4: Simplify right side
    3,279.82x = 9,283,634.87
  5. Step 5: Solve for x
    x = 9,283,634.87/3,279.82
  6. Step 6: Final answer
    x = 2,830.53

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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.