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Finding the Fourth Proportional to 3,995.21, 5,993.63 and 1,399.97

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Solution

The fourth proportional to 3,995.21, 5,993.63 and 1,399.97 is: 2,100.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.21 : 5,993.63 = 1,399.97 : x
  2. Step 2: Convert to fraction form
    3,995.21/5,993.63 = 1,399.97/x
  3. Step 3: Cross multiply
    3,995.21x = 5,993.63 × 1,399.97
  4. Step 4: Simplify right side
    3,995.21x = 8,390,865.22
  5. Step 5: Solve for x
    x = 8,390,865.22/3,995.21
  6. Step 6: Final answer
    x = 2,100.23

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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.