Home / 3,939,006.76-5,435,824.06-2,128,170.76

Finding the Fourth Proportional to 3,939,006.76, 5,435,824.06 and 2,128,170.76

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Solution

The fourth proportional to 3,939,006.76, 5,435,824.06 and 2,128,170.76 is: 2,936,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,006.76 : 5,435,824.06 = 2,128,170.76 : x
  2. Step 2: Convert to fraction form
    3,939,006.76/5,435,824.06 = 2,128,170.76/x
  3. Step 3: Cross multiply
    3,939,006.76x = 5,435,824.06 × 2,128,170.76
  4. Step 4: Simplify right side
    3,939,006.76x = 11,568,361,783,176.51
  5. Step 5: Solve for x
    x = 11,568,361,783,176.51/3,939,006.76
  6. Step 6: Final answer
    x = 2,936,872.80

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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.