Home / 2,198.37-3,033.70-1,203.65

Finding the Fourth Proportional to 2,198.37, 3,033.70 and 1,203.65

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Solution

The fourth proportional to 2,198.37, 3,033.70 and 1,203.65 is: 1,661.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.37 : 3,033.70 = 1,203.65 : x
  2. Step 2: Convert to fraction form
    2,198.37/3,033.70 = 1,203.65/x
  3. Step 3: Cross multiply
    2,198.37x = 3,033.70 × 1,203.65
  4. Step 4: Simplify right side
    2,198.37x = 3,651,513.01
  5. Step 5: Solve for x
    x = 3,651,513.01/2,198.37
  6. Step 6: Final answer
    x = 1,661.01

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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.