Home / 2,198.91-3,295.42-1,210.28

Finding the Fourth Proportional to 2,198.91, 3,295.42 and 1,210.28

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Solution

The fourth proportional to 2,198.91, 3,295.42 and 1,210.28 is: 1,813.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.91 : 3,295.42 = 1,210.28 : x
  2. Step 2: Convert to fraction form
    2,198.91/3,295.42 = 1,210.28/x
  3. Step 3: Cross multiply
    2,198.91x = 3,295.42 × 1,210.28
  4. Step 4: Simplify right side
    2,198.91x = 3,988,361.41
  5. Step 5: Solve for x
    x = 3,988,361.41/2,198.91
  6. Step 6: Final answer
    x = 1,813.79

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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.