Home / 7,072.48-10,609.20-3,608.80

Finding the Fourth Proportional to 7,072.48, 10,609.20 and 3,608.80

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Solution

The fourth proportional to 7,072.48, 10,609.20 and 3,608.80 is: 5,413.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.48 : 10,609.20 = 3,608.80 : x
  2. Step 2: Convert to fraction form
    7,072.48/10,609.20 = 3,608.80/x
  3. Step 3: Cross multiply
    7,072.48x = 10,609.20 × 3,608.80
  4. Step 4: Simplify right side
    7,072.48x = 38,286,480.96
  5. Step 5: Solve for x
    x = 38,286,480.96/7,072.48
  6. Step 6: Final answer
    x = 5,413.44

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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.