Home / 2,912.26-4,016.56-1,791.21

Finding the Fourth Proportional to 2,912.26, 4,016.56 and 1,791.21

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Solution

The fourth proportional to 2,912.26, 4,016.56 and 1,791.21 is: 2,470.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.26 : 4,016.56 = 1,791.21 : x
  2. Step 2: Convert to fraction form
    2,912.26/4,016.56 = 1,791.21/x
  3. Step 3: Cross multiply
    2,912.26x = 4,016.56 × 1,791.21
  4. Step 4: Simplify right side
    2,912.26x = 7,194,502.44
  5. Step 5: Solve for x
    x = 7,194,502.44/2,912.26
  6. Step 6: Final answer
    x = 2,470.42

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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.