Home / 3,941,985-5,439,946.68-2,131,149

Finding the Fourth Proportional to 3,941,985, 5,439,946.68 and 2,131,149

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Solution

The fourth proportional to 3,941,985, 5,439,946.68 and 2,131,149 is: 2,940,989.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941,985 : 5,439,946.68 = 2,131,149 : x
  2. Step 2: Convert to fraction form
    3,941,985/5,439,946.68 = 2,131,149/x
  3. Step 3: Cross multiply
    3,941,985x = 5,439,946.68 × 2,131,149
  4. Step 4: Simplify right side
    3,941,985x = 11,593,336,927,135.32
  5. Step 5: Solve for x
    x = 11,593,336,927,135.32/3,941,985
  6. Step 6: Final answer
    x = 2,940,989.61

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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.