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Finding the Fourth Proportional to 3,998.83, 5,998.25 and 1,401.16

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Solution

The fourth proportional to 3,998.83, 5,998.25 and 1,401.16 is: 2,101.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.83 : 5,998.25 = 1,401.16 : x
  2. Step 2: Convert to fraction form
    3,998.83/5,998.25 = 1,401.16/x
  3. Step 3: Cross multiply
    3,998.83x = 5,998.25 × 1,401.16
  4. Step 4: Simplify right side
    3,998.83x = 8,404,507.97
  5. Step 5: Solve for x
    x = 8,404,507.97/3,998.83
  6. Step 6: Final answer
    x = 2,101.74

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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.