Home / 3,768.12-5,187.24-3,103.92

Finding the Fourth Proportional to 3,768.12, 5,187.24 and 3,103.92

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Solution

The fourth proportional to 3,768.12, 5,187.24 and 3,103.92 is: 4,272.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.12 : 5,187.24 = 3,103.92 : x
  2. Step 2: Convert to fraction form
    3,768.12/5,187.24 = 3,103.92/x
  3. Step 3: Cross multiply
    3,768.12x = 5,187.24 × 3,103.92
  4. Step 4: Simplify right side
    3,768.12x = 16,100,777.98
  5. Step 5: Solve for x
    x = 16,100,777.98/3,768.12
  6. Step 6: Final answer
    x = 4,272.89

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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.