Home / 2,198.85-3,298.37-1,224.22

Finding the Fourth Proportional to 2,198.85, 3,298.37 and 1,224.22

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Solution

The fourth proportional to 2,198.85, 3,298.37 and 1,224.22 is: 1,836.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.85 : 3,298.37 = 1,224.22 : x
  2. Step 2: Convert to fraction form
    2,198.85/3,298.37 = 1,224.22/x
  3. Step 3: Cross multiply
    2,198.85x = 3,298.37 × 1,224.22
  4. Step 4: Simplify right side
    2,198.85x = 4,037,918.62
  5. Step 5: Solve for x
    x = 4,037,918.62/2,198.85
  6. Step 6: Final answer
    x = 1,836.38

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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.