Home / 1,201.24-1,791.13-1,199.62

Finding the Fourth Proportional to 1,201.24, 1,791.13 and 1,199.62

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Solution

The fourth proportional to 1,201.24, 1,791.13 and 1,199.62 is: 1,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201.24 : 1,791.13 = 1,199.62 : x
  2. Step 2: Convert to fraction form
    1,201.24/1,791.13 = 1,199.62/x
  3. Step 3: Cross multiply
    1,201.24x = 1,791.13 × 1,199.62
  4. Step 4: Simplify right side
    1,201.24x = 2,148,675.37
  5. Step 5: Solve for x
    x = 2,148,675.37/1,201.24
  6. Step 6: Final answer
    x = 1,788.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.