Home / 3,992.48-5,511.91-3,040.80

Finding the Fourth Proportional to 3,992.48, 5,511.91 and 3,040.80

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Solution

The fourth proportional to 3,992.48, 5,511.91 and 3,040.80 is: 4,198.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.48 : 5,511.91 = 3,040.80 : x
  2. Step 2: Convert to fraction form
    3,992.48/5,511.91 = 3,040.80/x
  3. Step 3: Cross multiply
    3,992.48x = 5,511.91 × 3,040.80
  4. Step 4: Simplify right side
    3,992.48x = 16,760,615.93
  5. Step 5: Solve for x
    x = 16,760,615.93/3,992.48
  6. Step 6: Final answer
    x = 4,198.05

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1.5x scale

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.