Home / 2,100,044.70-3,150,067.05-1,298,727.90

Finding the Fourth Proportional to 2,100,044.70, 3,150,067.05 and 1,298,727.90

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Solution

The fourth proportional to 2,100,044.70, 3,150,067.05 and 1,298,727.90 is: 1,948,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,044.70 : 3,150,067.05 = 1,298,727.90 : x
  2. Step 2: Convert to fraction form
    2,100,044.70/3,150,067.05 = 1,298,727.90/x
  3. Step 3: Cross multiply
    2,100,044.70x = 3,150,067.05 × 1,298,727.90
  4. Step 4: Simplify right side
    2,100,044.70x = 4,091,079,964,705.69
  5. Step 5: Solve for x
    x = 4,091,079,964,705.69/2,100,044.70
  6. Step 6: Final answer
    x = 1,948,091.85

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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.