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Finding the Fourth Proportional to 5,662.91, 8,489.88 and 2,699.80

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Solution

The fourth proportional to 5,662.91, 8,489.88 and 2,699.80 is: 4,047.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,662.91 : 8,489.88 = 2,699.80 : x
  2. Step 2: Convert to fraction form
    5,662.91/8,489.88 = 2,699.80/x
  3. Step 3: Cross multiply
    5,662.91x = 8,489.88 × 2,699.80
  4. Step 4: Simplify right side
    5,662.91x = 22,920,956.80
  5. Step 5: Solve for x
    x = 22,920,956.80/5,662.91
  6. Step 6: Final answer
    x = 4,047.56

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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.