Home / 2,131,134.80-2,941,023.72-1,272,193.56

Finding the Fourth Proportional to 2,131,134.80, 2,941,023.72 and 1,272,193.56

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Solution

The fourth proportional to 2,131,134.80, 2,941,023.72 and 1,272,193.56 is: 1,755,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,134.80 : 2,941,023.72 = 1,272,193.56 : x
  2. Step 2: Convert to fraction form
    2,131,134.80/2,941,023.72 = 1,272,193.56/x
  3. Step 3: Cross multiply
    2,131,134.80x = 2,941,023.72 × 1,272,193.56
  4. Step 4: Simplify right side
    2,131,134.80x = 3,741,551,436,391.24
  5. Step 5: Solve for x
    x = 3,741,551,436,391.24/2,131,134.80
  6. Step 6: Final answer
    x = 1,755,661.55

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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.