Home / 3,939,007.44-5,435,825-2,128,171.44

Finding the Fourth Proportional to 3,939,007.44, 5,435,825 and 2,128,171.44

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Solution

The fourth proportional to 3,939,007.44, 5,435,825 and 2,128,171.44 is: 2,936,873.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,007.44 : 5,435,825 = 2,128,171.44 : x
  2. Step 2: Convert to fraction form
    3,939,007.44/5,435,825 = 2,128,171.44/x
  3. Step 3: Cross multiply
    3,939,007.44x = 5,435,825 × 2,128,171.44
  4. Step 4: Simplify right side
    3,939,007.44x = 11,568,367,517,838
  5. Step 5: Solve for x
    x = 11,568,367,517,838/3,939,007.44
  6. Step 6: Final answer
    x = 2,936,873.74

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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.