Home / 3,408.28-5,112.38-2,309.92

Finding the Fourth Proportional to 3,408.28, 5,112.38 and 2,309.92

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Solution

The fourth proportional to 3,408.28, 5,112.38 and 2,309.92 is: 3,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.28 : 5,112.38 = 2,309.92 : x
  2. Step 2: Convert to fraction form
    3,408.28/5,112.38 = 2,309.92/x
  3. Step 3: Cross multiply
    3,408.28x = 5,112.38 × 2,309.92
  4. Step 4: Simplify right side
    3,408.28x = 11,809,188.81
  5. Step 5: Solve for x
    x = 11,809,188.81/3,408.28
  6. Step 6: Final answer
    x = 3,464.85

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1.5x scale

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.