Home / 2,187,911.48-3,019,357.85-1,207,966.91

Finding the Fourth Proportional to 2,187,911.48, 3,019,357.85 and 1,207,966.91

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Solution

The fourth proportional to 2,187,911.48, 3,019,357.85 and 1,207,966.91 is: 1,667,016.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,911.48 : 3,019,357.85 = 1,207,966.91 : x
  2. Step 2: Convert to fraction form
    2,187,911.48/3,019,357.85 = 1,207,966.91/x
  3. Step 3: Cross multiply
    2,187,911.48x = 3,019,357.85 × 1,207,966.91
  4. Step 4: Simplify right side
    2,187,911.48x = 3,647,284,351,112.12
  5. Step 5: Solve for x
    x = 3,647,284,351,112.12/2,187,911.48
  6. Step 6: Final answer
    x = 1,667,016.42

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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.