Home / 3,447.64-5,170.82-1,107.68

Finding the Fourth Proportional to 3,447.64, 5,170.82 and 1,107.68

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Solution

The fourth proportional to 3,447.64, 5,170.82 and 1,107.68 is: 1,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.64 : 5,170.82 = 1,107.68 : x
  2. Step 2: Convert to fraction form
    3,447.64/5,170.82 = 1,107.68/x
  3. Step 3: Cross multiply
    3,447.64x = 5,170.82 × 1,107.68
  4. Step 4: Simplify right side
    3,447.64x = 5,727,621.29
  5. Step 5: Solve for x
    x = 5,727,621.29/3,447.64
  6. Step 6: Final answer
    x = 1,661.32

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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.