Home / 2,198.09-3,033.39-1,203.45

Finding the Fourth Proportional to 2,198.09, 3,033.39 and 1,203.45

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Solution

The fourth proportional to 2,198.09, 3,033.39 and 1,203.45 is: 1,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.09 : 3,033.39 = 1,203.45 : x
  2. Step 2: Convert to fraction form
    2,198.09/3,033.39 = 1,203.45/x
  3. Step 3: Cross multiply
    2,198.09x = 3,033.39 × 1,203.45
  4. Step 4: Simplify right side
    2,198.09x = 3,650,544.57
  5. Step 5: Solve for x
    x = 3,650,544.57/2,198.09
  6. Step 6: Final answer
    x = 1,660.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.