Home / 2,629,990.80-3,944,986.20-1,921,402.80

Finding the Fourth Proportional to 2,629,990.80, 3,944,986.20 and 1,921,402.80

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Solution

The fourth proportional to 2,629,990.80, 3,944,986.20 and 1,921,402.80 is: 2,882,104.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629,990.80 : 3,944,986.20 = 1,921,402.80 : x
  2. Step 2: Convert to fraction form
    2,629,990.80/3,944,986.20 = 1,921,402.80/x
  3. Step 3: Cross multiply
    2,629,990.80x = 3,944,986.20 × 1,921,402.80
  4. Step 4: Simplify right side
    2,629,990.80x = 7,579,907,530,641.36
  5. Step 5: Solve for x
    x = 7,579,907,530,641.36/2,629,990.80
  6. Step 6: Final answer
    x = 2,882,104.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.