Home / 3,447.39-5,170.80-1,106.76

Finding the Fourth Proportional to 3,447.39, 5,170.80 and 1,106.76

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Solution

The fourth proportional to 3,447.39, 5,170.80 and 1,106.76 is: 1,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.39 : 5,170.80 = 1,106.76 : x
  2. Step 2: Convert to fraction form
    3,447.39/5,170.80 = 1,106.76/x
  3. Step 3: Cross multiply
    3,447.39x = 5,170.80 × 1,106.76
  4. Step 4: Simplify right side
    3,447.39x = 5,722,834.61
  5. Step 5: Solve for x
    x = 5,722,834.61/3,447.39
  6. Step 6: Final answer
    x = 1,660.05

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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.