Home / 3,389.20-5,079.41-2,731.38

Finding the Fourth Proportional to 3,389.20, 5,079.41 and 2,731.38

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Solution

The fourth proportional to 3,389.20, 5,079.41 and 2,731.38 is: 4,093.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.20 : 5,079.41 = 2,731.38 : x
  2. Step 2: Convert to fraction form
    3,389.20/5,079.41 = 2,731.38/x
  3. Step 3: Cross multiply
    3,389.20x = 5,079.41 × 2,731.38
  4. Step 4: Simplify right side
    3,389.20x = 13,873,798.89
  5. Step 5: Solve for x
    x = 13,873,798.89/3,389.20
  6. Step 6: Final answer
    x = 4,093.53

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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.