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Finding the Fourth Proportional to 5,929.98, 8,891.99 and 1,979.88

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Solution

The fourth proportional to 5,929.98, 8,891.99 and 1,979.88 is: 2,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,929.98 : 8,891.99 = 1,979.88 : x
  2. Step 2: Convert to fraction form
    5,929.98/8,891.99 = 1,979.88/x
  3. Step 3: Cross multiply
    5,929.98x = 8,891.99 × 1,979.88
  4. Step 4: Simplify right side
    5,929.98x = 17,605,063.26
  5. Step 5: Solve for x
    x = 17,605,063.26/5,929.98
  6. Step 6: Final answer
    x = 2,968.82

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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.