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Finding the Fourth Proportional to 3,805.22, 5,705.51 and 1,340.33

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Solution

The fourth proportional to 3,805.22, 5,705.51 and 1,340.33 is: 2,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.22 : 5,705.51 = 1,340.33 : x
  2. Step 2: Convert to fraction form
    3,805.22/5,705.51 = 1,340.33/x
  3. Step 3: Cross multiply
    3,805.22x = 5,705.51 × 1,340.33
  4. Step 4: Simplify right side
    3,805.22x = 7,647,230.99
  5. Step 5: Solve for x
    x = 7,647,230.99/3,805.22
  6. Step 6: Final answer
    x = 2,009.67

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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.