Home / 2,198.67-3,033.75-1,314.28

Finding the Fourth Proportional to 2,198.67, 3,033.75 and 1,314.28

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Solution

The fourth proportional to 2,198.67, 3,033.75 and 1,314.28 is: 1,813.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.67 : 3,033.75 = 1,314.28 : x
  2. Step 2: Convert to fraction form
    2,198.67/3,033.75 = 1,314.28/x
  3. Step 3: Cross multiply
    2,198.67x = 3,033.75 × 1,314.28
  4. Step 4: Simplify right side
    2,198.67x = 3,987,196.95
  5. Step 5: Solve for x
    x = 3,987,196.95/2,198.67
  6. Step 6: Final answer
    x = 1,813.46

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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.