Home / 3,231.77-4,838.09-1,995.21

Finding the Fourth Proportional to 3,231.77, 4,838.09 and 1,995.21

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Solution

The fourth proportional to 3,231.77, 4,838.09 and 1,995.21 is: 2,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.77 : 4,838.09 = 1,995.21 : x
  2. Step 2: Convert to fraction form
    3,231.77/4,838.09 = 1,995.21/x
  3. Step 3: Cross multiply
    3,231.77x = 4,838.09 × 1,995.21
  4. Step 4: Simplify right side
    3,231.77x = 9,652,971.38
  5. Step 5: Solve for x
    x = 9,652,971.38/3,231.77
  6. Step 6: Final answer
    x = 2,986.90

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1.5x scale

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.