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Finding the Fourth Proportional to 3,344.22, 5,015.91 and 879.24

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Solution

The fourth proportional to 3,344.22, 5,015.91 and 879.24 is: 1,318.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,344.22 : 5,015.91 = 879.24 : x
  2. Step 2: Convert to fraction form
    3,344.22/5,015.91 = 879.24/x
  3. Step 3: Cross multiply
    3,344.22x = 5,015.91 × 879.24
  4. Step 4: Simplify right side
    3,344.22x = 4,410,188.71
  5. Step 5: Solve for x
    x = 4,410,188.71/3,344.22
  6. Step 6: Final answer
    x = 1,318.75

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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.