Home / 8,072.28-12,108.38-2,149.77

Finding the Fourth Proportional to 8,072.28, 12,108.38 and 2,149.77

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Solution

The fourth proportional to 8,072.28, 12,108.38 and 2,149.77 is: 3,224.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.28 : 12,108.38 = 2,149.77 : x
  2. Step 2: Convert to fraction form
    8,072.28/12,108.38 = 2,149.77/x
  3. Step 3: Cross multiply
    8,072.28x = 12,108.38 × 2,149.77
  4. Step 4: Simplify right side
    8,072.28x = 26,030,221.32
  5. Step 5: Solve for x
    x = 26,030,221.32/8,072.28
  6. Step 6: Final answer
    x = 3,224.64

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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.