Home / 8,057.40-12,081.80-2,791.06

Finding the Fourth Proportional to 8,057.40, 12,081.80 and 2,791.06

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Solution

The fourth proportional to 8,057.40, 12,081.80 and 2,791.06 is: 4,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,057.40 : 12,081.80 = 2,791.06 : x
  2. Step 2: Convert to fraction form
    8,057.40/12,081.80 = 2,791.06/x
  3. Step 3: Cross multiply
    8,057.40x = 12,081.80 × 2,791.06
  4. Step 4: Simplify right side
    8,057.40x = 33,721,035.69
  5. Step 5: Solve for x
    x = 33,721,035.69/8,057.40
  6. Step 6: Final answer
    x = 4,185.10

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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.