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Finding the Fourth Proportional to 5,879.50, 8,816.19 and 1,982.50

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Solution

The fourth proportional to 5,879.50, 8,816.19 and 1,982.50 is: 2,972.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.50 : 8,816.19 = 1,982.50 : x
  2. Step 2: Convert to fraction form
    5,879.50/8,816.19 = 1,982.50/x
  3. Step 3: Cross multiply
    5,879.50x = 8,816.19 × 1,982.50
  4. Step 4: Simplify right side
    5,879.50x = 17,478,096.68
  5. Step 5: Solve for x
    x = 17,478,096.68/5,879.50
  6. Step 6: Final answer
    x = 2,972.72

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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.