Home / 2,654.20-3,980.22-2,132.56

Finding the Fourth Proportional to 2,654.20, 3,980.22 and 2,132.56

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Solution

The fourth proportional to 2,654.20, 3,980.22 and 2,132.56 is: 3,197.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.20 : 3,980.22 = 2,132.56 : x
  2. Step 2: Convert to fraction form
    2,654.20/3,980.22 = 2,132.56/x
  3. Step 3: Cross multiply
    2,654.20x = 3,980.22 × 2,132.56
  4. Step 4: Simplify right side
    2,654.20x = 8,488,057.96
  5. Step 5: Solve for x
    x = 8,488,057.96/2,654.20
  6. Step 6: Final answer
    x = 3,197.97

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1.5x scale

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.