Home / 5,391.05-8,078.33-3,629.54

Finding the Fourth Proportional to 5,391.05, 8,078.33 and 3,629.54

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Solution

The fourth proportional to 5,391.05, 8,078.33 and 3,629.54 is: 5,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.05 : 8,078.33 = 3,629.54 : x
  2. Step 2: Convert to fraction form
    5,391.05/8,078.33 = 3,629.54/x
  3. Step 3: Cross multiply
    5,391.05x = 8,078.33 × 3,629.54
  4. Step 4: Simplify right side
    5,391.05x = 29,320,563.33
  5. Step 5: Solve for x
    x = 29,320,563.33/5,391.05
  6. Step 6: Final answer
    x = 5,438.75

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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.