Home / 7,408.25-11,112.78-2,214.53

Finding the Fourth Proportional to 7,408.25, 11,112.78 and 2,214.53

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Solution

The fourth proportional to 7,408.25, 11,112.78 and 2,214.53 is: 3,321.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.25 : 11,112.78 = 2,214.53 : x
  2. Step 2: Convert to fraction form
    7,408.25/11,112.78 = 2,214.53/x
  3. Step 3: Cross multiply
    7,408.25x = 11,112.78 × 2,214.53
  4. Step 4: Simplify right side
    7,408.25x = 24,609,584.69
  5. Step 5: Solve for x
    x = 24,609,584.69/7,408.25
  6. Step 6: Final answer
    x = 3,321.92

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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.