Home / 5,805.25-8,707.84-2,107.47

Finding the Fourth Proportional to 5,805.25, 8,707.84 and 2,107.47

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Solution

The fourth proportional to 5,805.25, 8,707.84 and 2,107.47 is: 3,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.25 : 8,707.84 = 2,107.47 : x
  2. Step 2: Convert to fraction form
    5,805.25/8,707.84 = 2,107.47/x
  3. Step 3: Cross multiply
    5,805.25x = 8,707.84 × 2,107.47
  4. Step 4: Simplify right side
    5,805.25x = 18,351,511.56
  5. Step 5: Solve for x
    x = 18,351,511.56/5,805.25
  6. Step 6: Final answer
    x = 3,161.19

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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.