Home / 1,336.05-2,004.09-605.85

Finding the Fourth Proportional to 1,336.05, 2,004.09 and 605.85

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Solution

The fourth proportional to 1,336.05, 2,004.09 and 605.85 is: 908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.05 : 2,004.09 = 605.85 : x
  2. Step 2: Convert to fraction form
    1,336.05/2,004.09 = 605.85/x
  3. Step 3: Cross multiply
    1,336.05x = 2,004.09 × 605.85
  4. Step 4: Simplify right side
    1,336.05x = 1,214,177.93
  5. Step 5: Solve for x
    x = 1,214,177.93/1,336.05
  6. Step 6: Final answer
    x = 908.78

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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.