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Finding the Fourth Proportional to 5,487.45, 8,230.99 and 2,199.66

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Solution

The fourth proportional to 5,487.45, 8,230.99 and 2,199.66 is: 3,299.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.45 : 8,230.99 = 2,199.66 : x
  2. Step 2: Convert to fraction form
    5,487.45/8,230.99 = 2,199.66/x
  3. Step 3: Cross multiply
    5,487.45x = 8,230.99 × 2,199.66
  4. Step 4: Simplify right side
    5,487.45x = 18,105,379.46
  5. Step 5: Solve for x
    x = 18,105,379.46/5,487.45
  6. Step 6: Final answer
    x = 3,299.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.