Home / 3,861.54-5,328.80-2,268.16

Finding the Fourth Proportional to 3,861.54, 5,328.80 and 2,268.16

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Solution

The fourth proportional to 3,861.54, 5,328.80 and 2,268.16 is: 3,129.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.54 : 5,328.80 = 2,268.16 : x
  2. Step 2: Convert to fraction form
    3,861.54/5,328.80 = 2,268.16/x
  3. Step 3: Cross multiply
    3,861.54x = 5,328.80 × 2,268.16
  4. Step 4: Simplify right side
    3,861.54x = 12,086,571.01
  5. Step 5: Solve for x
    x = 12,086,571.01/3,861.54
  6. Step 6: Final answer
    x = 3,129.99

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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.