Home / 2,747.80-3,791.34-1,568.68

Finding the Fourth Proportional to 2,747.80, 3,791.34 and 1,568.68

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Solution

The fourth proportional to 2,747.80, 3,791.34 and 1,568.68 is: 2,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.80 : 3,791.34 = 1,568.68 : x
  2. Step 2: Convert to fraction form
    2,747.80/3,791.34 = 1,568.68/x
  3. Step 3: Cross multiply
    2,747.80x = 3,791.34 × 1,568.68
  4. Step 4: Simplify right side
    2,747.80x = 5,947,399.23
  5. Step 5: Solve for x
    x = 5,947,399.23/2,747.80
  6. Step 6: Final answer
    x = 2,164.42

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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.