Home / 3,941,982-5,439,942.54-2,131,146

Finding the Fourth Proportional to 3,941,982, 5,439,942.54 and 2,131,146

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Solution

The fourth proportional to 3,941,982, 5,439,942.54 and 2,131,146 is: 2,940,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941,982 : 5,439,942.54 = 2,131,146 : x
  2. Step 2: Convert to fraction form
    3,941,982/5,439,942.54 = 2,131,146/x
  3. Step 3: Cross multiply
    3,941,982x = 5,439,942.54 × 2,131,146
  4. Step 4: Simplify right side
    3,941,982x = 11,593,311,784,350.84
  5. Step 5: Solve for x
    x = 11,593,311,784,350.84/3,941,982
  6. Step 6: Final answer
    x = 2,940,985.47

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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.