Home / 3,728.08-5,145.22-2,236.06

Finding the Fourth Proportional to 3,728.08, 5,145.22 and 2,236.06

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Solution

The fourth proportional to 3,728.08, 5,145.22 and 2,236.06 is: 3,086.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.08 : 5,145.22 = 2,236.06 : x
  2. Step 2: Convert to fraction form
    3,728.08/5,145.22 = 2,236.06/x
  3. Step 3: Cross multiply
    3,728.08x = 5,145.22 × 2,236.06
  4. Step 4: Simplify right side
    3,728.08x = 11,505,000.92
  5. Step 5: Solve for x
    x = 11,505,000.92/3,728.08
  6. Step 6: Final answer
    x = 3,086.04

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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.