Home / 3,939,006-5,435,823.02-2,128,170

Finding the Fourth Proportional to 3,939,006, 5,435,823.02 and 2,128,170

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Solution

The fourth proportional to 3,939,006, 5,435,823.02 and 2,128,170 is: 2,936,871.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,006 : 5,435,823.02 = 2,128,170 : x
  2. Step 2: Convert to fraction form
    3,939,006/5,435,823.02 = 2,128,170/x
  3. Step 3: Cross multiply
    3,939,006x = 5,435,823.02 × 2,128,170
  4. Step 4: Simplify right side
    3,939,006x = 11,568,355,476,473.40
  5. Step 5: Solve for x
    x = 11,568,355,476,473.40/3,939,006
  6. Step 6: Final answer
    x = 2,936,871.76

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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.