Home / 2,131,136.78-2,941,026.48-1,272,195.56

Finding the Fourth Proportional to 2,131,136.78, 2,941,026.48 and 1,272,195.56

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Solution

The fourth proportional to 2,131,136.78, 2,941,026.48 and 1,272,195.56 is: 1,755,664.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,136.78 : 2,941,026.48 = 1,272,195.56 : x
  2. Step 2: Convert to fraction form
    2,131,136.78/2,941,026.48 = 1,272,195.56/x
  3. Step 3: Cross multiply
    2,131,136.78x = 2,941,026.48 × 1,272,195.56
  4. Step 4: Simplify right side
    2,131,136.78x = 3,741,560,829,698.43
  5. Step 5: Solve for x
    x = 3,741,560,829,698.43/2,131,136.78
  6. Step 6: Final answer
    x = 1,755,664.33

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1.5x scale

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.