Home / 2,887,755.42-3,986,982.56-1,855,660.91

Finding the Fourth Proportional to 2,887,755.42, 3,986,982.56 and 1,855,660.91

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Solution

The fourth proportional to 2,887,755.42, 3,986,982.56 and 1,855,660.91 is: 2,562,020.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887,755.42 : 3,986,982.56 = 1,855,660.91 : x
  2. Step 2: Convert to fraction form
    2,887,755.42/3,986,982.56 = 1,855,660.91/x
  3. Step 3: Cross multiply
    2,887,755.42x = 3,986,982.56 × 1,855,660.91
  4. Step 4: Simplify right side
    2,887,755.42x = 7,398,487,682,136.65
  5. Step 5: Solve for x
    x = 7,398,487,682,136.65/2,887,755.42
  6. Step 6: Final answer
    x = 2,562,020.19

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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.