Home / 8,020.82-12,028.80-3,090.08

Finding the Fourth Proportional to 8,020.82, 12,028.80 and 3,090.08

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Solution

The fourth proportional to 8,020.82, 12,028.80 and 3,090.08 is: 4,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.82 : 12,028.80 = 3,090.08 : x
  2. Step 2: Convert to fraction form
    8,020.82/12,028.80 = 3,090.08/x
  3. Step 3: Cross multiply
    8,020.82x = 12,028.80 × 3,090.08
  4. Step 4: Simplify right side
    8,020.82x = 37,169,954.30
  5. Step 5: Solve for x
    x = 37,169,954.30/8,020.82
  6. Step 6: Final answer
    x = 4,634.18

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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.