Home / 3,789.09-5,684.33-1,290.49

Finding the Fourth Proportional to 3,789.09, 5,684.33 and 1,290.49

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Solution

The fourth proportional to 3,789.09, 5,684.33 and 1,290.49 is: 1,935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.09 : 5,684.33 = 1,290.49 : x
  2. Step 2: Convert to fraction form
    3,789.09/5,684.33 = 1,290.49/x
  3. Step 3: Cross multiply
    3,789.09x = 5,684.33 × 1,290.49
  4. Step 4: Simplify right side
    3,789.09x = 7,335,571.02
  5. Step 5: Solve for x
    x = 7,335,571.02/3,789.09
  6. Step 6: Final answer
    x = 1,935.97

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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.