Home / 3,513.14-5,272.05-1,321.94

Finding the Fourth Proportional to 3,513.14, 5,272.05 and 1,321.94

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Solution

The fourth proportional to 3,513.14, 5,272.05 and 1,321.94 is: 1,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.14 : 5,272.05 = 1,321.94 : x
  2. Step 2: Convert to fraction form
    3,513.14/5,272.05 = 1,321.94/x
  3. Step 3: Cross multiply
    3,513.14x = 5,272.05 × 1,321.94
  4. Step 4: Simplify right side
    3,513.14x = 6,969,333.78
  5. Step 5: Solve for x
    x = 6,969,333.78/3,513.14
  6. Step 6: Final answer
    x = 1,983.79

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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.