Home / 8,179.38-12,269.85-2,984.02

Finding the Fourth Proportional to 8,179.38, 12,269.85 and 2,984.02

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Solution

The fourth proportional to 8,179.38, 12,269.85 and 2,984.02 is: 4,476.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.38 : 12,269.85 = 2,984.02 : x
  2. Step 2: Convert to fraction form
    8,179.38/12,269.85 = 2,984.02/x
  3. Step 3: Cross multiply
    8,179.38x = 12,269.85 × 2,984.02
  4. Step 4: Simplify right side
    8,179.38x = 36,613,477.80
  5. Step 5: Solve for x
    x = 36,613,477.80/8,179.38
  6. Step 6: Final answer
    x = 4,476.31

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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.