Home / 3,941,984-5,439,945.30-2,131,148

Finding the Fourth Proportional to 3,941,984, 5,439,945.30 and 2,131,148

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Solution

The fourth proportional to 3,941,984, 5,439,945.30 and 2,131,148 is: 2,940,988.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941,984 : 5,439,945.30 = 2,131,148 : x
  2. Step 2: Convert to fraction form
    3,941,984/5,439,945.30 = 2,131,148/x
  3. Step 3: Cross multiply
    3,941,984x = 5,439,945.30 × 2,131,148
  4. Step 4: Simplify right side
    3,941,984x = 11,593,328,546,204.40
  5. Step 5: Solve for x
    x = 11,593,328,546,204.40/3,941,984
  6. Step 6: Final answer
    x = 2,940,988.23

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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.