Home / 1,201.55-1,805.37-1,067.90

Finding the Fourth Proportional to 1,201.55, 1,805.37 and 1,067.90

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Solution

The fourth proportional to 1,201.55, 1,805.37 and 1,067.90 is: 1,604.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201.55 : 1,805.37 = 1,067.90 : x
  2. Step 2: Convert to fraction form
    1,201.55/1,805.37 = 1,067.90/x
  3. Step 3: Cross multiply
    1,201.55x = 1,805.37 × 1,067.90
  4. Step 4: Simplify right side
    1,201.55x = 1,927,949.28
  5. Step 5: Solve for x
    x = 1,927,949.28/1,201.55
  6. Step 6: Final answer
    x = 1,604.55

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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.