Home / 3,828.96-5,279.76-2,832.96

Finding the Fourth Proportional to 3,828.96, 5,279.76 and 2,832.96

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Solution

The fourth proportional to 3,828.96, 5,279.76 and 2,832.96 is: 3,906.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.96 : 5,279.76 = 2,832.96 : x
  2. Step 2: Convert to fraction form
    3,828.96/5,279.76 = 2,832.96/x
  3. Step 3: Cross multiply
    3,828.96x = 5,279.76 × 2,832.96
  4. Step 4: Simplify right side
    3,828.96x = 14,957,348.89
  5. Step 5: Solve for x
    x = 14,957,348.89/3,828.96
  6. Step 6: Final answer
    x = 3,906.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.