Home / 3,729.75-5,591.80-3,215.81

Finding the Fourth Proportional to 3,729.75, 5,591.80 and 3,215.81

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Solution

The fourth proportional to 3,729.75, 5,591.80 and 3,215.81 is: 4,821.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.75 : 5,591.80 = 3,215.81 : x
  2. Step 2: Convert to fraction form
    3,729.75/5,591.80 = 3,215.81/x
  3. Step 3: Cross multiply
    3,729.75x = 5,591.80 × 3,215.81
  4. Step 4: Simplify right side
    3,729.75x = 17,982,122.32
  5. Step 5: Solve for x
    x = 17,982,122.32/3,729.75
  6. Step 6: Final answer
    x = 4,821.27

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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.