Home / 6,872.68-10,309.56-3,408.04

Finding the Fourth Proportional to 6,872.68, 10,309.56 and 3,408.04

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Solution

The fourth proportional to 6,872.68, 10,309.56 and 3,408.04 is: 5,112.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.68 : 10,309.56 = 3,408.04 : x
  2. Step 2: Convert to fraction form
    6,872.68/10,309.56 = 3,408.04/x
  3. Step 3: Cross multiply
    6,872.68x = 10,309.56 × 3,408.04
  4. Step 4: Simplify right side
    6,872.68x = 35,135,392.86
  5. Step 5: Solve for x
    x = 35,135,392.86/6,872.68
  6. Step 6: Final answer
    x = 5,112.33

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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.