Home / 3,446.80-5,170.20-2,669.20

Finding the Fourth Proportional to 3,446.80, 5,170.20 and 2,669.20

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Solution

The fourth proportional to 3,446.80, 5,170.20 and 2,669.20 is: 4,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,446.80 : 5,170.20 = 2,669.20 : x
  2. Step 2: Convert to fraction form
    3,446.80/5,170.20 = 2,669.20/x
  3. Step 3: Cross multiply
    3,446.80x = 5,170.20 × 2,669.20
  4. Step 4: Simplify right side
    3,446.80x = 13,800,297.84
  5. Step 5: Solve for x
    x = 13,800,297.84/3,446.80
  6. Step 6: Final answer
    x = 4,003.80

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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.