Home / 2,028.27-2,799.05-1,189.58

Finding the Fourth Proportional to 2,028.27, 2,799.05 and 1,189.58

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Solution

The fourth proportional to 2,028.27, 2,799.05 and 1,189.58 is: 1,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.27 : 2,799.05 = 1,189.58 : x
  2. Step 2: Convert to fraction form
    2,028.27/2,799.05 = 1,189.58/x
  3. Step 3: Cross multiply
    2,028.27x = 2,799.05 × 1,189.58
  4. Step 4: Simplify right side
    2,028.27x = 3,329,678.20
  5. Step 5: Solve for x
    x = 3,329,678.20/2,028.27
  6. Step 6: Final answer
    x = 1,641.64

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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.