Home / 3,127.68-4,321.56-2,734.08

Finding the Fourth Proportional to 3,127.68, 4,321.56 and 2,734.08

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Solution

The fourth proportional to 3,127.68, 4,321.56 and 2,734.08 is: 3,777.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.68 : 4,321.56 = 2,734.08 : x
  2. Step 2: Convert to fraction form
    3,127.68/4,321.56 = 2,734.08/x
  3. Step 3: Cross multiply
    3,127.68x = 4,321.56 × 2,734.08
  4. Step 4: Simplify right side
    3,127.68x = 11,815,490.76
  5. Step 5: Solve for x
    x = 11,815,490.76/3,127.68
  6. Step 6: Final answer
    x = 3,777.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.