Home / 5,099.20-7,648.80-3,608.80

Finding the Fourth Proportional to 5,099.20, 7,648.80 and 3,608.80

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Solution

The fourth proportional to 5,099.20, 7,648.80 and 3,608.80 is: 5,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.20 : 7,648.80 = 3,608.80 : x
  2. Step 2: Convert to fraction form
    5,099.20/7,648.80 = 3,608.80/x
  3. Step 3: Cross multiply
    5,099.20x = 7,648.80 × 3,608.80
  4. Step 4: Simplify right side
    5,099.20x = 27,602,989.44
  5. Step 5: Solve for x
    x = 27,602,989.44/5,099.20
  6. Step 6: Final answer
    x = 5,413.20

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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.