Home / 5,169.20-7,757.76-3,786.16

Finding the Fourth Proportional to 5,169.20, 7,757.76 and 3,786.16

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Solution

The fourth proportional to 5,169.20, 7,757.76 and 3,786.16 is: 5,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.20 : 7,757.76 = 3,786.16 : x
  2. Step 2: Convert to fraction form
    5,169.20/7,757.76 = 3,786.16/x
  3. Step 3: Cross multiply
    5,169.20x = 7,757.76 × 3,786.16
  4. Step 4: Simplify right side
    5,169.20x = 29,372,120.60
  5. Step 5: Solve for x
    x = 29,372,120.60/5,169.20
  6. Step 6: Final answer
    x = 5,682.14

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1.5x scale

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.