Home / 3,186.12-4,777.44-1,105.96

Finding the Fourth Proportional to 3,186.12, 4,777.44 and 1,105.96

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Solution

The fourth proportional to 3,186.12, 4,777.44 and 1,105.96 is: 1,658.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.12 : 4,777.44 = 1,105.96 : x
  2. Step 2: Convert to fraction form
    3,186.12/4,777.44 = 1,105.96/x
  3. Step 3: Cross multiply
    3,186.12x = 4,777.44 × 1,105.96
  4. Step 4: Simplify right side
    3,186.12x = 5,283,657.54
  5. Step 5: Solve for x
    x = 5,283,657.54/3,186.12
  6. Step 6: Final answer
    x = 1,658.34

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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.