Home / 2,815.17-4,221.46-1,170.73

Finding the Fourth Proportional to 2,815.17, 4,221.46 and 1,170.73

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Solution

The fourth proportional to 2,815.17, 4,221.46 and 1,170.73 is: 1,755.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.17 : 4,221.46 = 1,170.73 : x
  2. Step 2: Convert to fraction form
    2,815.17/4,221.46 = 1,170.73/x
  3. Step 3: Cross multiply
    2,815.17x = 4,221.46 × 1,170.73
  4. Step 4: Simplify right side
    2,815.17x = 4,942,189.87
  5. Step 5: Solve for x
    x = 4,942,189.87/2,815.17
  6. Step 6: Final answer
    x = 1,755.56

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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.