Home / 1,936.33-2,672.19-1,190.72

Finding the Fourth Proportional to 1,936.33, 2,672.19 and 1,190.72

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Solution

The fourth proportional to 1,936.33, 2,672.19 and 1,190.72 is: 1,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.33 : 2,672.19 = 1,190.72 : x
  2. Step 2: Convert to fraction form
    1,936.33/2,672.19 = 1,190.72/x
  3. Step 3: Cross multiply
    1,936.33x = 2,672.19 × 1,190.72
  4. Step 4: Simplify right side
    1,936.33x = 3,181,830.08
  5. Step 5: Solve for x
    x = 3,181,830.08/1,936.33
  6. Step 6: Final answer
    x = 1,643.23

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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.