Home / 3,861.12-5,329.20-2,268.48

Finding the Fourth Proportional to 3,861.12, 5,329.20 and 2,268.48

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Solution

The fourth proportional to 3,861.12, 5,329.20 and 2,268.48 is: 3,131.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.12 : 5,329.20 = 2,268.48 : x
  2. Step 2: Convert to fraction form
    3,861.12/5,329.20 = 2,268.48/x
  3. Step 3: Cross multiply
    3,861.12x = 5,329.20 × 2,268.48
  4. Step 4: Simplify right side
    3,861.12x = 12,089,183.62
  5. Step 5: Solve for x
    x = 12,089,183.62/3,861.12
  6. Step 6: Final answer
    x = 3,131.00

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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.