Home / 3,873,430.89-5,345,122.64-2,131,067.43

Finding the Fourth Proportional to 3,873,430.89, 5,345,122.64 and 2,131,067.43

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Solution

The fourth proportional to 3,873,430.89, 5,345,122.64 and 2,131,067.43 is: 2,940,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873,430.89 : 5,345,122.64 = 2,131,067.43 : x
  2. Step 2: Convert to fraction form
    3,873,430.89/5,345,122.64 = 2,131,067.43/x
  3. Step 3: Cross multiply
    3,873,430.89x = 5,345,122.64 × 2,131,067.43
  4. Step 4: Simplify right side
    3,873,430.89x = 11,390,816,756,804.28
  5. Step 5: Solve for x
    x = 11,390,816,756,804.28/3,873,430.89
  6. Step 6: Final answer
    x = 2,940,756.42

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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.