Home / 8,132.28-12,199.23-2,938.56

Finding the Fourth Proportional to 8,132.28, 12,199.23 and 2,938.56

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Solution

The fourth proportional to 8,132.28, 12,199.23 and 2,938.56 is: 4,408.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.28 : 12,199.23 = 2,938.56 : x
  2. Step 2: Convert to fraction form
    8,132.28/12,199.23 = 2,938.56/x
  3. Step 3: Cross multiply
    8,132.28x = 12,199.23 × 2,938.56
  4. Step 4: Simplify right side
    8,132.28x = 35,848,169.31
  5. Step 5: Solve for x
    x = 35,848,169.31/8,132.28
  6. Step 6: Final answer
    x = 4,408.13

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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.