Home / 8,122.96-12,183-2,928.88

Finding the Fourth Proportional to 8,122.96, 12,183 and 2,928.88

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Solution

The fourth proportional to 8,122.96, 12,183 and 2,928.88 is: 4,392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.96 : 12,183 = 2,928.88 : x
  2. Step 2: Convert to fraction form
    8,122.96/12,183 = 2,928.88/x
  3. Step 3: Cross multiply
    8,122.96x = 12,183 × 2,928.88
  4. Step 4: Simplify right side
    8,122.96x = 35,682,545.04
  5. Step 5: Solve for x
    x = 35,682,545.04/8,122.96
  6. Step 6: Final answer
    x = 4,392.80

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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.