Home / 3,321.07-4,982.64-2,086.77

Finding the Fourth Proportional to 3,321.07, 4,982.64 and 2,086.77

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Solution

The fourth proportional to 3,321.07, 4,982.64 and 2,086.77 is: 3,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.07 : 4,982.64 = 2,086.77 : x
  2. Step 2: Convert to fraction form
    3,321.07/4,982.64 = 2,086.77/x
  3. Step 3: Cross multiply
    3,321.07x = 4,982.64 × 2,086.77
  4. Step 4: Simplify right side
    3,321.07x = 10,397,634.53
  5. Step 5: Solve for x
    x = 10,397,634.53/3,321.07
  6. Step 6: Final answer
    x = 3,130.81

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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.