Home / 5,240.28-7,231.60-3,982.44

Finding the Fourth Proportional to 5,240.28, 7,231.60 and 3,982.44

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Solution

The fourth proportional to 5,240.28, 7,231.60 and 3,982.44 is: 5,495.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.28 : 7,231.60 = 3,982.44 : x
  2. Step 2: Convert to fraction form
    5,240.28/7,231.60 = 3,982.44/x
  3. Step 3: Cross multiply
    5,240.28x = 7,231.60 × 3,982.44
  4. Step 4: Simplify right side
    5,240.28x = 28,799,413.10
  5. Step 5: Solve for x
    x = 28,799,413.10/5,240.28
  6. Step 6: Final answer
    x = 5,495.78

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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.