Home / 2,028.78-2,799.96-1,144.68

Finding the Fourth Proportional to 2,028.78, 2,799.96 and 1,144.68

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Solution

The fourth proportional to 2,028.78, 2,799.96 and 1,144.68 is: 1,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.78 : 2,799.96 = 1,144.68 : x
  2. Step 2: Convert to fraction form
    2,028.78/2,799.96 = 1,144.68/x
  3. Step 3: Cross multiply
    2,028.78x = 2,799.96 × 1,144.68
  4. Step 4: Simplify right side
    2,028.78x = 3,205,058.21
  5. Step 5: Solve for x
    x = 3,205,058.21/2,028.78
  6. Step 6: Final answer
    x = 1,579.80

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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.