Home / 1,928.68-2,891.19-1,751.90

Finding the Fourth Proportional to 1,928.68, 2,891.19 and 1,751.90

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Solution

The fourth proportional to 1,928.68, 2,891.19 and 1,751.90 is: 2,626.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.68 : 2,891.19 = 1,751.90 : x
  2. Step 2: Convert to fraction form
    1,928.68/2,891.19 = 1,751.90/x
  3. Step 3: Cross multiply
    1,928.68x = 2,891.19 × 1,751.90
  4. Step 4: Simplify right side
    1,928.68x = 5,065,067.87
  5. Step 5: Solve for x
    x = 5,065,067.87/1,928.68
  6. Step 6: Final answer
    x = 2,626.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.