Home / 6,721.45-10,078.91-2,040.61

Finding the Fourth Proportional to 6,721.45, 10,078.91 and 2,040.61

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Solution

The fourth proportional to 6,721.45, 10,078.91 and 2,040.61 is: 3,059.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.45 : 10,078.91 = 2,040.61 : x
  2. Step 2: Convert to fraction form
    6,721.45/10,078.91 = 2,040.61/x
  3. Step 3: Cross multiply
    6,721.45x = 10,078.91 × 2,040.61
  4. Step 4: Simplify right side
    6,721.45x = 20,567,124.54
  5. Step 5: Solve for x
    x = 20,567,124.54/6,721.45
  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.