Home / 5,187.20-7,777.66-2,067.68

Finding the Fourth Proportional to 5,187.20, 7,777.66 and 2,067.68

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Solution

The fourth proportional to 5,187.20, 7,777.66 and 2,067.68 is: 3,100.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.20 : 7,777.66 = 2,067.68 : x
  2. Step 2: Convert to fraction form
    5,187.20/7,777.66 = 2,067.68/x
  3. Step 3: Cross multiply
    5,187.20x = 7,777.66 × 2,067.68
  4. Step 4: Simplify right side
    5,187.20x = 16,081,712.03
  5. Step 5: Solve for x
    x = 16,081,712.03/5,187.20
  6. Step 6: Final answer
    x = 3,100.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.