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Finding the Fourth Proportional to 5,908.62, 8,865.38 and 2,987.78

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Solution

The fourth proportional to 5,908.62, 8,865.38 and 2,987.78 is: 4,482.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,908.62 : 8,865.38 = 2,987.78 : x
  2. Step 2: Convert to fraction form
    5,908.62/8,865.38 = 2,987.78/x
  3. Step 3: Cross multiply
    5,908.62x = 8,865.38 × 2,987.78
  4. Step 4: Simplify right side
    5,908.62x = 26,487,805.06
  5. Step 5: Solve for x
    x = 26,487,805.06/5,908.62
  6. Step 6: Final answer
    x = 4,482.91

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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.