Home / 5,255.69-7,884.98-2,757.05

Finding the Fourth Proportional to 5,255.69, 7,884.98 and 2,757.05

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Solution

The fourth proportional to 5,255.69, 7,884.98 and 2,757.05 is: 4,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.69 : 7,884.98 = 2,757.05 : x
  2. Step 2: Convert to fraction form
    5,255.69/7,884.98 = 2,757.05/x
  3. Step 3: Cross multiply
    5,255.69x = 7,884.98 × 2,757.05
  4. Step 4: Simplify right side
    5,255.69x = 21,739,230.90
  5. Step 5: Solve for x
    x = 21,739,230.90/5,255.69
  6. Step 6: Final answer
    x = 4,136.32

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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.