Home / 6,721.38-10,078.83-2,040.60

Finding the Fourth Proportional to 6,721.38, 10,078.83 and 2,040.60

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Solution

The fourth proportional to 6,721.38, 10,078.83 and 2,040.60 is: 3,059.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.38 : 10,078.83 = 2,040.60 : x
  2. Step 2: Convert to fraction form
    6,721.38/10,078.83 = 2,040.60/x
  3. Step 3: Cross multiply
    6,721.38x = 10,078.83 × 2,040.60
  4. Step 4: Simplify right side
    6,721.38x = 20,566,860.50
  5. Step 5: Solve for x
    x = 20,566,860.50/6,721.38
  6. Step 6: Final answer
    x = 3,059.92

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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.