Home / 5,408.28-8,112.42-2,942.44

Finding the Fourth Proportional to 5,408.28, 8,112.42 and 2,942.44

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Solution

The fourth proportional to 5,408.28, 8,112.42 and 2,942.44 is: 4,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.28 : 8,112.42 = 2,942.44 : x
  2. Step 2: Convert to fraction form
    5,408.28/8,112.42 = 2,942.44/x
  3. Step 3: Cross multiply
    5,408.28x = 8,112.42 × 2,942.44
  4. Step 4: Simplify right side
    5,408.28x = 23,870,309.10
  5. Step 5: Solve for x
    x = 23,870,309.10/5,408.28
  6. Step 6: Final answer
    x = 4,413.66

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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.