Home / 3,185.99-4,772.60-2,489.39

Finding the Fourth Proportional to 3,185.99, 4,772.60 and 2,489.39

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Solution

The fourth proportional to 3,185.99, 4,772.60 and 2,489.39 is: 3,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.99 : 4,772.60 = 2,489.39 : x
  2. Step 2: Convert to fraction form
    3,185.99/4,772.60 = 2,489.39/x
  3. Step 3: Cross multiply
    3,185.99x = 4,772.60 × 2,489.39
  4. Step 4: Simplify right side
    3,185.99x = 11,880,867.64
  5. Step 5: Solve for x
    x = 11,880,867.64/3,185.99
  6. Step 6: Final answer
    x = 3,729.10

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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.