Home / 5,730.19-7,906.96-3,211.72

Finding the Fourth Proportional to 5,730.19, 7,906.96 and 3,211.72

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Solution

The fourth proportional to 5,730.19, 7,906.96 and 3,211.72 is: 4,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,730.19 : 7,906.96 = 3,211.72 : x
  2. Step 2: Convert to fraction form
    5,730.19/7,906.96 = 3,211.72/x
  3. Step 3: Cross multiply
    5,730.19x = 7,906.96 × 3,211.72
  4. Step 4: Simplify right side
    5,730.19x = 25,394,941.57
  5. Step 5: Solve for x
    x = 25,394,941.57/5,730.19
  6. Step 6: Final answer
    x = 4,431.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.