Home / 5,344.80-8,010.12-2,221.20

Finding the Fourth Proportional to 5,344.80, 8,010.12 and 2,221.20

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Solution

The fourth proportional to 5,344.80, 8,010.12 and 2,221.20 is: 3,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,344.80 : 8,010.12 = 2,221.20 : x
  2. Step 2: Convert to fraction form
    5,344.80/8,010.12 = 2,221.20/x
  3. Step 3: Cross multiply
    5,344.80x = 8,010.12 × 2,221.20
  4. Step 4: Simplify right side
    5,344.80x = 17,792,078.54
  5. Step 5: Solve for x
    x = 17,792,078.54/5,344.80
  6. Step 6: Final answer
    x = 3,328.86

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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.