Home / 2,132.72-3,194.40-1,720.88

Finding the Fourth Proportional to 2,132.72, 3,194.40 and 1,720.88

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Solution

The fourth proportional to 2,132.72, 3,194.40 and 1,720.88 is: 2,577.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.72 : 3,194.40 = 1,720.88 : x
  2. Step 2: Convert to fraction form
    2,132.72/3,194.40 = 1,720.88/x
  3. Step 3: Cross multiply
    2,132.72x = 3,194.40 × 1,720.88
  4. Step 4: Simplify right side
    2,132.72x = 5,497,179.07
  5. Step 5: Solve for x
    x = 5,497,179.07/2,132.72
  6. Step 6: Final answer
    x = 2,577.54

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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.