Home / 2,219.43-3,062.97-1,275.38

Finding the Fourth Proportional to 2,219.43, 3,062.97 and 1,275.38

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Solution

The fourth proportional to 2,219.43, 3,062.97 and 1,275.38 is: 1,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.43 : 3,062.97 = 1,275.38 : x
  2. Step 2: Convert to fraction form
    2,219.43/3,062.97 = 1,275.38/x
  3. Step 3: Cross multiply
    2,219.43x = 3,062.97 × 1,275.38
  4. Step 4: Simplify right side
    2,219.43x = 3,906,450.68
  5. Step 5: Solve for x
    x = 3,906,450.68/2,219.43
  6. Step 6: Final answer
    x = 1,760.11

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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.