Home / 3,453.11-5,179.95-1,081.02

Finding the Fourth Proportional to 3,453.11, 5,179.95 and 1,081.02

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Solution

The fourth proportional to 3,453.11, 5,179.95 and 1,081.02 is: 1,621.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.11 : 5,179.95 = 1,081.02 : x
  2. Step 2: Convert to fraction form
    3,453.11/5,179.95 = 1,081.02/x
  3. Step 3: Cross multiply
    3,453.11x = 5,179.95 × 1,081.02
  4. Step 4: Simplify right side
    3,453.11x = 5,599,629.55
  5. Step 5: Solve for x
    x = 5,599,629.55/3,453.11
  6. Step 6: Final answer
    x = 1,621.62

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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.