Home / 2,198.79-3,033.95-1,254.15

Finding the Fourth Proportional to 2,198.79, 3,033.95 and 1,254.15

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Solution

The fourth proportional to 2,198.79, 3,033.95 and 1,254.15 is: 1,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.79 : 3,033.95 = 1,254.15 : x
  2. Step 2: Convert to fraction form
    2,198.79/3,033.95 = 1,254.15/x
  3. Step 3: Cross multiply
    2,198.79x = 3,033.95 × 1,254.15
  4. Step 4: Simplify right side
    2,198.79x = 3,805,022.12
  5. Step 5: Solve for x
    x = 3,805,022.12/2,198.79
  6. Step 6: Final answer
    x = 1,730.51

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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.