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Finding the Fourth Proportional to 5,979.64, 8,251.32 and 3,326.80

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Solution

The fourth proportional to 5,979.64, 8,251.32 and 3,326.80 is: 4,590.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.64 : 8,251.32 = 3,326.80 : x
  2. Step 2: Convert to fraction form
    5,979.64/8,251.32 = 3,326.80/x
  3. Step 3: Cross multiply
    5,979.64x = 8,251.32 × 3,326.80
  4. Step 4: Simplify right side
    5,979.64x = 27,450,491.38
  5. Step 5: Solve for x
    x = 27,450,491.38/5,979.64
  6. Step 6: Final answer
    x = 4,590.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.