Home / 3,447.40-5,171.42-1,106.80

Finding the Fourth Proportional to 3,447.40, 5,171.42 and 1,106.80

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Solution

The fourth proportional to 3,447.40, 5,171.42 and 1,106.80 is: 1,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.40 : 5,171.42 = 1,106.80 : x
  2. Step 2: Convert to fraction form
    3,447.40/5,171.42 = 1,106.80/x
  3. Step 3: Cross multiply
    3,447.40x = 5,171.42 × 1,106.80
  4. Step 4: Simplify right side
    3,447.40x = 5,723,727.66
  5. Step 5: Solve for x
    x = 5,723,727.66/3,447.40
  6. Step 6: Final answer
    x = 1,660.30

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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.