Home / 3,939.09-5,910.99-3,535.71

Finding the Fourth Proportional to 3,939.09, 5,910.99 and 3,535.71

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Solution

The fourth proportional to 3,939.09, 5,910.99 and 3,535.71 is: 5,305.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.09 : 5,910.99 = 3,535.71 : x
  2. Step 2: Convert to fraction form
    3,939.09/5,910.99 = 3,535.71/x
  3. Step 3: Cross multiply
    3,939.09x = 5,910.99 × 3,535.71
  4. Step 4: Simplify right side
    3,939.09x = 20,899,546.45
  5. Step 5: Solve for x
    x = 20,899,546.45/3,939.09
  6. Step 6: Final answer
    x = 5,305.68

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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.