Home / 3,408.08-5,108.88-2,172.02

Finding the Fourth Proportional to 3,408.08, 5,108.88 and 2,172.02

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Solution

The fourth proportional to 3,408.08, 5,108.88 and 2,172.02 is: 3,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.08 : 5,108.88 = 2,172.02 : x
  2. Step 2: Convert to fraction form
    3,408.08/5,108.88 = 2,172.02/x
  3. Step 3: Cross multiply
    3,408.08x = 5,108.88 × 2,172.02
  4. Step 4: Simplify right side
    3,408.08x = 11,096,589.54
  5. Step 5: Solve for x
    x = 11,096,589.54/3,408.08
  6. Step 6: Final answer
    x = 3,255.97

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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.