Home / 5,078.97-7,625.75-3,318.44

Finding the Fourth Proportional to 5,078.97, 7,625.75 and 3,318.44

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Solution

The fourth proportional to 5,078.97, 7,625.75 and 3,318.44 is: 4,982.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.97 : 7,625.75 = 3,318.44 : x
  2. Step 2: Convert to fraction form
    5,078.97/7,625.75 = 3,318.44/x
  3. Step 3: Cross multiply
    5,078.97x = 7,625.75 × 3,318.44
  4. Step 4: Simplify right side
    5,078.97x = 25,305,539.11
  5. Step 5: Solve for x
    x = 25,305,539.11/5,078.97
  6. Step 6: Final answer
    x = 4,982.42

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1.5x scale

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.