Home / 3,612.68-5,419.21-1,015.82

Finding the Fourth Proportional to 3,612.68, 5,419.21 and 1,015.82

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Solution

The fourth proportional to 3,612.68, 5,419.21 and 1,015.82 is: 1,523.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.68 : 5,419.21 = 1,015.82 : x
  2. Step 2: Convert to fraction form
    3,612.68/5,419.21 = 1,015.82/x
  3. Step 3: Cross multiply
    3,612.68x = 5,419.21 × 1,015.82
  4. Step 4: Simplify right side
    3,612.68x = 5,504,941.90
  5. Step 5: Solve for x
    x = 5,504,941.90/3,612.68
  6. Step 6: Final answer
    x = 1,523.78

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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.