Home / 8,065.82-12,100.45-2,800.99

Finding the Fourth Proportional to 8,065.82, 12,100.45 and 2,800.99

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Solution

The fourth proportional to 8,065.82, 12,100.45 and 2,800.99 is: 4,202.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.82 : 12,100.45 = 2,800.99 : x
  2. Step 2: Convert to fraction form
    8,065.82/12,100.45 = 2,800.99/x
  3. Step 3: Cross multiply
    8,065.82x = 12,100.45 × 2,800.99
  4. Step 4: Simplify right side
    8,065.82x = 33,893,239.45
  5. Step 5: Solve for x
    x = 33,893,239.45/8,065.82
  6. Step 6: Final answer
    x = 4,202.08

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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.