Home / 3,939.27-5,910.70-1,474.28

Finding the Fourth Proportional to 3,939.27, 5,910.70 and 1,474.28

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Solution

The fourth proportional to 3,939.27, 5,910.70 and 1,474.28 is: 2,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.27 : 5,910.70 = 1,474.28 : x
  2. Step 2: Convert to fraction form
    3,939.27/5,910.70 = 1,474.28/x
  3. Step 3: Cross multiply
    3,939.27x = 5,910.70 × 1,474.28
  4. Step 4: Simplify right side
    3,939.27x = 8,714,012.27
  5. Step 5: Solve for x
    x = 8,714,012.27/3,939.27
  6. Step 6: Final answer
    x = 2,212.09

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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.