Home / 3,873,431.89-5,345,124.01-2,131,068.43

Finding the Fourth Proportional to 3,873,431.89, 5,345,124.01 and 2,131,068.43

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Solution

The fourth proportional to 3,873,431.89, 5,345,124.01 and 2,131,068.43 is: 2,940,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873,431.89 : 5,345,124.01 = 2,131,068.43 : x
  2. Step 2: Convert to fraction form
    3,873,431.89/5,345,124.01 = 2,131,068.43/x
  3. Step 3: Cross multiply
    3,873,431.89x = 5,345,124.01 × 2,131,068.43
  4. Step 4: Simplify right side
    3,873,431.89x = 11,390,825,032,146.00
  5. Step 5: Solve for x
    x = 11,390,825,032,146.00/3,873,431.89
  6. Step 6: Final answer
    x = 2,940,757.80

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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.