Home / 2,231.67-3,347.03-1,408.85

Finding the Fourth Proportional to 2,231.67, 3,347.03 and 1,408.85

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Solution

The fourth proportional to 2,231.67, 3,347.03 and 1,408.85 is: 2,112.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.67 : 3,347.03 = 1,408.85 : x
  2. Step 2: Convert to fraction form
    2,231.67/3,347.03 = 1,408.85/x
  3. Step 3: Cross multiply
    2,231.67x = 3,347.03 × 1,408.85
  4. Step 4: Simplify right side
    2,231.67x = 4,715,439.44
  5. Step 5: Solve for x
    x = 4,715,439.44/2,231.67
  6. Step 6: Final answer
    x = 2,112.96

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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.