Home / 5,391.72-7,438.80-3,268.04

Finding the Fourth Proportional to 5,391.72, 7,438.80 and 3,268.04

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Solution

The fourth proportional to 5,391.72, 7,438.80 and 3,268.04 is: 4,508.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.72 : 7,438.80 = 3,268.04 : x
  2. Step 2: Convert to fraction form
    5,391.72/7,438.80 = 3,268.04/x
  3. Step 3: Cross multiply
    5,391.72x = 7,438.80 × 3,268.04
  4. Step 4: Simplify right side
    5,391.72x = 24,310,295.95
  5. Step 5: Solve for x
    x = 24,310,295.95/5,391.72
  6. Step 6: Final answer
    x = 4,508.82

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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.