Home / 2,131,153.70-2,941,049.92-1,272,212.68

Finding the Fourth Proportional to 2,131,153.70, 2,941,049.92 and 1,272,212.68

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Solution

The fourth proportional to 2,131,153.70, 2,941,049.92 and 1,272,212.68 is: 1,755,688.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,153.70 : 2,941,049.92 = 1,272,212.68 : x
  2. Step 2: Convert to fraction form
    2,131,153.70/2,941,049.92 = 1,272,212.68/x
  3. Step 3: Cross multiply
    2,131,153.70x = 2,941,049.92 × 1,272,212.68
  4. Step 4: Simplify right side
    2,131,153.70x = 3,741,641,000,736.99
  5. Step 5: Solve for x
    x = 3,741,641,000,736.99/2,131,153.70
  6. Step 6: Final answer
    x = 1,755,688.01

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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.