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Finding the Fourth Proportional to 5,979.62, 8,968.07 and 1,818.86

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Solution

The fourth proportional to 5,979.62, 8,968.07 and 1,818.86 is: 2,727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.62 : 8,968.07 = 1,818.86 : x
  2. Step 2: Convert to fraction form
    5,979.62/8,968.07 = 1,818.86/x
  3. Step 3: Cross multiply
    5,979.62x = 8,968.07 × 1,818.86
  4. Step 4: Simplify right side
    5,979.62x = 16,311,613.28
  5. Step 5: Solve for x
    x = 16,311,613.28/5,979.62
  6. Step 6: Final answer
    x = 2,727.87

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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.