Home / 2,276.40-3,418.20-1,729.20

Finding the Fourth Proportional to 2,276.40, 3,418.20 and 1,729.20

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Solution

The fourth proportional to 2,276.40, 3,418.20 and 1,729.20 is: 2,596.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.40 : 3,418.20 = 1,729.20 : x
  2. Step 2: Convert to fraction form
    2,276.40/3,418.20 = 1,729.20/x
  3. Step 3: Cross multiply
    2,276.40x = 3,418.20 × 1,729.20
  4. Step 4: Simplify right side
    2,276.40x = 5,910,751.44
  5. Step 5: Solve for x
    x = 5,910,751.44/2,276.40
  6. Step 6: Final answer
    x = 2,596.53

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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.