Home / 3,939.92-5,910.90-1,748.12

Finding the Fourth Proportional to 3,939.92, 5,910.90 and 1,748.12

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Solution

The fourth proportional to 3,939.92, 5,910.90 and 1,748.12 is: 2,622.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.92 : 5,910.90 = 1,748.12 : x
  2. Step 2: Convert to fraction form
    3,939.92/5,910.90 = 1,748.12/x
  3. Step 3: Cross multiply
    3,939.92x = 5,910.90 × 1,748.12
  4. Step 4: Simplify right side
    3,939.92x = 10,332,962.51
  5. Step 5: Solve for x
    x = 10,332,962.51/3,939.92
  6. Step 6: Final answer
    x = 2,622.63

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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.