Home / 3,338.91-5,010.39-1,391.09

Finding the Fourth Proportional to 3,338.91, 5,010.39 and 1,391.09

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Solution

The fourth proportional to 3,338.91, 5,010.39 and 1,391.09 is: 2,087.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.91 : 5,010.39 = 1,391.09 : x
  2. Step 2: Convert to fraction form
    3,338.91/5,010.39 = 1,391.09/x
  3. Step 3: Cross multiply
    3,338.91x = 5,010.39 × 1,391.09
  4. Step 4: Simplify right side
    3,338.91x = 6,969,878.37
  5. Step 5: Solve for x
    x = 6,969,878.37/3,338.91
  6. Step 6: Final answer
    x = 2,087.47

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1.5x scale

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.