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Finding the Fourth Proportional to 5,979.15, 8,967.69 and 1,818.15

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Solution

The fourth proportional to 5,979.15, 8,967.69 and 1,818.15 is: 2,726.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.15 : 8,967.69 = 1,818.15 : x
  2. Step 2: Convert to fraction form
    5,979.15/8,967.69 = 1,818.15/x
  3. Step 3: Cross multiply
    5,979.15x = 8,967.69 × 1,818.15
  4. Step 4: Simplify right side
    5,979.15x = 16,304,605.57
  5. Step 5: Solve for x
    x = 16,304,605.57/5,979.15
  6. Step 6: Final answer
    x = 2,726.91

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1.5x scale

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.