Home / 1,201.85-1,799.26-1,086.56

Finding the Fourth Proportional to 1,201.85, 1,799.26 and 1,086.56

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Solution

The fourth proportional to 1,201.85, 1,799.26 and 1,086.56 is: 1,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201.85 : 1,799.26 = 1,086.56 : x
  2. Step 2: Convert to fraction form
    1,201.85/1,799.26 = 1,086.56/x
  3. Step 3: Cross multiply
    1,201.85x = 1,799.26 × 1,086.56
  4. Step 4: Simplify right side
    1,201.85x = 1,954,989.52
  5. Step 5: Solve for x
    x = 1,954,989.52/1,201.85
  6. Step 6: Final answer
    x = 1,626.66

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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.