Home / 7,114.29-10,676.88-3,221.43

Finding the Fourth Proportional to 7,114.29, 10,676.88 and 3,221.43

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Solution

The fourth proportional to 7,114.29, 10,676.88 and 3,221.43 is: 4,834.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,114.29 : 10,676.88 = 3,221.43 : x
  2. Step 2: Convert to fraction form
    7,114.29/10,676.88 = 3,221.43/x
  3. Step 3: Cross multiply
    7,114.29x = 10,676.88 × 3,221.43
  4. Step 4: Simplify right side
    7,114.29x = 34,394,821.54
  5. Step 5: Solve for x
    x = 34,394,821.54/7,114.29
  6. Step 6: Final answer
    x = 4,834.61

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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.