Home / 2,100,028.70-3,150,043.05-1,298,711.90

Finding the Fourth Proportional to 2,100,028.70, 3,150,043.05 and 1,298,711.90

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Solution

The fourth proportional to 2,100,028.70, 3,150,043.05 and 1,298,711.90 is: 1,948,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,028.70 : 3,150,043.05 = 1,298,711.90 : x
  2. Step 2: Convert to fraction form
    2,100,028.70/3,150,043.05 = 1,298,711.90/x
  3. Step 3: Cross multiply
    2,100,028.70x = 3,150,043.05 × 1,298,711.90
  4. Step 4: Simplify right side
    2,100,028.70x = 4,090,998,394,547.29
  5. Step 5: Solve for x
    x = 4,090,998,394,547.29/2,100,028.70
  6. Step 6: Final answer
    x = 1,948,067.85

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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.