Home / 3,231.72-4,837.99-1,995.15

Finding the Fourth Proportional to 3,231.72, 4,837.99 and 1,995.15

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Solution

The fourth proportional to 3,231.72, 4,837.99 and 1,995.15 is: 2,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.72 : 4,837.99 = 1,995.15 : x
  2. Step 2: Convert to fraction form
    3,231.72/4,837.99 = 1,995.15/x
  3. Step 3: Cross multiply
    3,231.72x = 4,837.99 × 1,995.15
  4. Step 4: Simplify right side
    3,231.72x = 9,652,515.75
  5. Step 5: Solve for x
    x = 9,652,515.75/3,231.72
  6. Step 6: Final answer
    x = 2,986.80

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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.