Home / 3,850,021.68-5,312,965.44-2,131,105.20

Finding the Fourth Proportional to 3,850,021.68, 5,312,965.44 and 2,131,105.20

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Solution

The fourth proportional to 3,850,021.68, 5,312,965.44 and 2,131,105.20 is: 2,940,889.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850,021.68 : 5,312,965.44 = 2,131,105.20 : x
  2. Step 2: Convert to fraction form
    3,850,021.68/5,312,965.44 = 2,131,105.20/x
  3. Step 3: Cross multiply
    3,850,021.68x = 5,312,965.44 × 2,131,105.20
  4. Step 4: Simplify right side
    3,850,021.68x = 11,322,488,276,604.29
  5. Step 5: Solve for x
    x = 11,322,488,276,604.29/3,850,021.68
  6. Step 6: Final answer
    x = 2,940,889.49

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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.