Home / 3,995.75-5,986.32-2,231.57

Finding the Fourth Proportional to 3,995.75, 5,986.32 and 2,231.57

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Solution

The fourth proportional to 3,995.75, 5,986.32 and 2,231.57 is: 3,343.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.75 : 5,986.32 = 2,231.57 : x
  2. Step 2: Convert to fraction form
    3,995.75/5,986.32 = 2,231.57/x
  3. Step 3: Cross multiply
    3,995.75x = 5,986.32 × 2,231.57
  4. Step 4: Simplify right side
    3,995.75x = 13,358,862.19
  5. Step 5: Solve for x
    x = 13,358,862.19/3,995.75
  6. Step 6: Final answer
    x = 3,343.27

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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.