Home / 2,131,136.30-2,941,025.79-1,272,195.06

Finding the Fourth Proportional to 2,131,136.30, 2,941,025.79 and 1,272,195.06

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Solution

The fourth proportional to 2,131,136.30, 2,941,025.79 and 1,272,195.06 is: 1,755,663.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,136.30 : 2,941,025.79 = 1,272,195.06 : x
  2. Step 2: Convert to fraction form
    2,131,136.30/2,941,025.79 = 1,272,195.06/x
  3. Step 3: Cross multiply
    2,131,136.30x = 2,941,025.79 × 1,272,195.06
  4. Step 4: Simplify right side
    2,131,136.30x = 3,741,558,481,370.60
  5. Step 5: Solve for x
    x = 3,741,558,481,370.60/2,131,136.30
  6. Step 6: Final answer
    x = 1,755,663.62

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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.