Home / 6,380.85-8,805.62-3,727.75

Finding the Fourth Proportional to 6,380.85, 8,805.62 and 3,727.75

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Solution

The fourth proportional to 6,380.85, 8,805.62 and 3,727.75 is: 5,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,380.85 : 8,805.62 = 3,727.75 : x
  2. Step 2: Convert to fraction form
    6,380.85/8,805.62 = 3,727.75/x
  3. Step 3: Cross multiply
    6,380.85x = 8,805.62 × 3,727.75
  4. Step 4: Simplify right side
    6,380.85x = 32,825,149.96
  5. Step 5: Solve for x
    x = 32,825,149.96/6,380.85
  6. Step 6: Final answer
    x = 5,144.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.