Home / 3,261.83-4,890.62-2,147.88

Finding the Fourth Proportional to 3,261.83, 4,890.62 and 2,147.88

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Solution

The fourth proportional to 3,261.83, 4,890.62 and 2,147.88 is: 3,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.83 : 4,890.62 = 2,147.88 : x
  2. Step 2: Convert to fraction form
    3,261.83/4,890.62 = 2,147.88/x
  3. Step 3: Cross multiply
    3,261.83x = 4,890.62 × 2,147.88
  4. Step 4: Simplify right side
    3,261.83x = 10,504,440.43
  5. Step 5: Solve for x
    x = 10,504,440.43/3,261.83
  6. Step 6: Final answer
    x = 3,220.41

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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.