Home / 3,408.12-5,103.97-2,309.15

Finding the Fourth Proportional to 3,408.12, 5,103.97 and 2,309.15

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Solution

The fourth proportional to 3,408.12, 5,103.97 and 2,309.15 is: 3,458.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.12 : 5,103.97 = 2,309.15 : x
  2. Step 2: Convert to fraction form
    3,408.12/5,103.97 = 2,309.15/x
  3. Step 3: Cross multiply
    3,408.12x = 5,103.97 × 2,309.15
  4. Step 4: Simplify right side
    3,408.12x = 11,785,824.50
  5. Step 5: Solve for x
    x = 11,785,824.50/3,408.12
  6. Step 6: Final answer
    x = 3,458.16

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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.