Home / 2,813.97-3,883.56-2,028.48

Finding the Fourth Proportional to 2,813.97, 3,883.56 and 2,028.48

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Solution

The fourth proportional to 2,813.97, 3,883.56 and 2,028.48 is: 2,799.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.97 : 3,883.56 = 2,028.48 : x
  2. Step 2: Convert to fraction form
    2,813.97/3,883.56 = 2,028.48/x
  3. Step 3: Cross multiply
    2,813.97x = 3,883.56 × 2,028.48
  4. Step 4: Simplify right side
    2,813.97x = 7,877,723.79
  5. Step 5: Solve for x
    x = 7,877,723.79/2,813.97
  6. Step 6: Final answer
    x = 2,799.51

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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.