Home / 3,447.97-5,172.82-1,108.19

Finding the Fourth Proportional to 3,447.97, 5,172.82 and 1,108.19

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Solution

The fourth proportional to 3,447.97, 5,172.82 and 1,108.19 is: 1,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.97 : 5,172.82 = 1,108.19 : x
  2. Step 2: Convert to fraction form
    3,447.97/5,172.82 = 1,108.19/x
  3. Step 3: Cross multiply
    3,447.97x = 5,172.82 × 1,108.19
  4. Step 4: Simplify right side
    3,447.97x = 5,732,438.76
  5. Step 5: Solve for x
    x = 5,732,438.76/3,447.97
  6. Step 6: Final answer
    x = 1,662.56

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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.