Home / 5,620.24-7,749.85-3,828.88

Finding the Fourth Proportional to 5,620.24, 7,749.85 and 3,828.88

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Solution

The fourth proportional to 5,620.24, 7,749.85 and 3,828.88 is: 5,279.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.24 : 7,749.85 = 3,828.88 : x
  2. Step 2: Convert to fraction form
    5,620.24/7,749.85 = 3,828.88/x
  3. Step 3: Cross multiply
    5,620.24x = 7,749.85 × 3,828.88
  4. Step 4: Simplify right side
    5,620.24x = 29,673,197.35
  5. Step 5: Solve for x
    x = 29,673,197.35/5,620.24
  6. Step 6: Final answer
    x = 5,279.71

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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.