Home / 3,728.36-5,145.54-2,331.56

Finding the Fourth Proportional to 3,728.36, 5,145.54 and 2,331.56

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Solution

The fourth proportional to 3,728.36, 5,145.54 and 2,331.56 is: 3,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.36 : 5,145.54 = 2,331.56 : x
  2. Step 2: Convert to fraction form
    3,728.36/5,145.54 = 2,331.56/x
  3. Step 3: Cross multiply
    3,728.36x = 5,145.54 × 2,331.56
  4. Step 4: Simplify right side
    3,728.36x = 11,997,135.24
  5. Step 5: Solve for x
    x = 11,997,135.24/3,728.36
  6. Step 6: Final answer
    x = 3,217.80

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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.