Home / 2,300.80-3,451.20-2,122.60

Finding the Fourth Proportional to 2,300.80, 3,451.20 and 2,122.60

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Solution

The fourth proportional to 2,300.80, 3,451.20 and 2,122.60 is: 3,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,300.80 : 3,451.20 = 2,122.60 : x
  2. Step 2: Convert to fraction form
    2,300.80/3,451.20 = 2,122.60/x
  3. Step 3: Cross multiply
    2,300.80x = 3,451.20 × 2,122.60
  4. Step 4: Simplify right side
    2,300.80x = 7,325,517.12
  5. Step 5: Solve for x
    x = 7,325,517.12/2,300.80
  6. Step 6: Final answer
    x = 3,183.90

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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.