Home / 2,190.25-3,284.52-729.01

Finding the Fourth Proportional to 2,190.25, 3,284.52 and 729.01

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Solution

The fourth proportional to 2,190.25, 3,284.52 and 729.01 is: 1,093.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.25 : 3,284.52 = 729.01 : x
  2. Step 2: Convert to fraction form
    2,190.25/3,284.52 = 729.01/x
  3. Step 3: Cross multiply
    2,190.25x = 3,284.52 × 729.01
  4. Step 4: Simplify right side
    2,190.25x = 2,394,447.93
  5. Step 5: Solve for x
    x = 2,394,447.93/2,190.25
  6. Step 6: Final answer
    x = 1,093.23

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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.