Home / 2,758.39-4,137.58-1,198.20

Finding the Fourth Proportional to 2,758.39, 4,137.58 and 1,198.20

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Solution

The fourth proportional to 2,758.39, 4,137.58 and 1,198.20 is: 1,797.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.39 : 4,137.58 = 1,198.20 : x
  2. Step 2: Convert to fraction form
    2,758.39/4,137.58 = 1,198.20/x
  3. Step 3: Cross multiply
    2,758.39x = 4,137.58 × 1,198.20
  4. Step 4: Simplify right side
    2,758.39x = 4,957,636.58
  5. Step 5: Solve for x
    x = 4,957,636.58/2,758.39
  6. Step 6: Final answer
    x = 1,797.29

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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.