Home / 3,173.74-4,755.56-2,129.88

Finding the Fourth Proportional to 3,173.74, 4,755.56 and 2,129.88

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Solution

The fourth proportional to 3,173.74, 4,755.56 and 2,129.88 is: 3,191.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.74 : 4,755.56 = 2,129.88 : x
  2. Step 2: Convert to fraction form
    3,173.74/4,755.56 = 2,129.88/x
  3. Step 3: Cross multiply
    3,173.74x = 4,755.56 × 2,129.88
  4. Step 4: Simplify right side
    3,173.74x = 10,128,772.13
  5. Step 5: Solve for x
    x = 10,128,772.13/3,173.74
  6. Step 6: Final answer
    x = 3,191.43

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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.