Home / 5,729.14-7,906.89-3,211.66

Finding the Fourth Proportional to 5,729.14, 7,906.89 and 3,211.66

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Solution

The fourth proportional to 5,729.14, 7,906.89 and 3,211.66 is: 4,432.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,729.14 : 7,906.89 = 3,211.66 : x
  2. Step 2: Convert to fraction form
    5,729.14/7,906.89 = 3,211.66/x
  3. Step 3: Cross multiply
    5,729.14x = 7,906.89 × 3,211.66
  4. Step 4: Simplify right side
    5,729.14x = 25,394,242.34
  5. Step 5: Solve for x
    x = 25,394,242.34/5,729.14
  6. Step 6: Final answer
    x = 4,432.47

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1.5x scale

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.