Home / 5,170.99-7,757.85-2,705.15

Finding the Fourth Proportional to 5,170.99, 7,757.85 and 2,705.15

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Solution

The fourth proportional to 5,170.99, 7,757.85 and 2,705.15 is: 4,058.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.99 : 7,757.85 = 2,705.15 : x
  2. Step 2: Convert to fraction form
    5,170.99/7,757.85 = 2,705.15/x
  3. Step 3: Cross multiply
    5,170.99x = 7,757.85 × 2,705.15
  4. Step 4: Simplify right side
    5,170.99x = 20,986,147.93
  5. Step 5: Solve for x
    x = 20,986,147.93/5,170.99
  6. Step 6: Final answer
    x = 4,058.44

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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.