Home / 3,945.94-5,912.38-3,538.95

Finding the Fourth Proportional to 3,945.94, 5,912.38 and 3,538.95

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Solution

The fourth proportional to 3,945.94, 5,912.38 and 3,538.95 is: 5,302.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.94 : 5,912.38 = 3,538.95 : x
  2. Step 2: Convert to fraction form
    3,945.94/5,912.38 = 3,538.95/x
  3. Step 3: Cross multiply
    3,945.94x = 5,912.38 × 3,538.95
  4. Step 4: Simplify right side
    3,945.94x = 20,923,617.20
  5. Step 5: Solve for x
    x = 20,923,617.20/3,945.94
  6. Step 6: Final answer
    x = 5,302.57

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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.