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Finding the Fourth Proportional to 5,879.72, 8,817.88 and 2,756.56

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Solution

The fourth proportional to 5,879.72, 8,817.88 and 2,756.56 is: 4,134.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.72 : 8,817.88 = 2,756.56 : x
  2. Step 2: Convert to fraction form
    5,879.72/8,817.88 = 2,756.56/x
  3. Step 3: Cross multiply
    5,879.72x = 8,817.88 × 2,756.56
  4. Step 4: Simplify right side
    5,879.72x = 24,307,015.29
  5. Step 5: Solve for x
    x = 24,307,015.29/5,879.72
  6. Step 6: Final answer
    x = 4,134.04

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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.