Home / 2,928.97-4,395.08-1,198.81

Finding the Fourth Proportional to 2,928.97, 4,395.08 and 1,198.81

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Solution

The fourth proportional to 2,928.97, 4,395.08 and 1,198.81 is: 1,798.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.97 : 4,395.08 = 1,198.81 : x
  2. Step 2: Convert to fraction form
    2,928.97/4,395.08 = 1,198.81/x
  3. Step 3: Cross multiply
    2,928.97x = 4,395.08 × 1,198.81
  4. Step 4: Simplify right side
    2,928.97x = 5,268,865.85
  5. Step 5: Solve for x
    x = 5,268,865.85/2,928.97
  6. Step 6: Final answer
    x = 1,798.88

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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.