Home / 4,921.11-7,386.92-2,731.68

Finding the Fourth Proportional to 4,921.11, 7,386.92 and 2,731.68

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Solution

The fourth proportional to 4,921.11, 7,386.92 and 2,731.68 is: 4,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.11 : 7,386.92 = 2,731.68 : x
  2. Step 2: Convert to fraction form
    4,921.11/7,386.92 = 2,731.68/x
  3. Step 3: Cross multiply
    4,921.11x = 7,386.92 × 2,731.68
  4. Step 4: Simplify right side
    4,921.11x = 20,178,687.97
  5. Step 5: Solve for x
    x = 20,178,687.97/4,921.11
  6. Step 6: Final answer
    x = 4,100.43

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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.