Home / 3,415.62-5,124.26-1,107.12

Finding the Fourth Proportional to 3,415.62, 5,124.26 and 1,107.12

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Solution

The fourth proportional to 3,415.62, 5,124.26 and 1,107.12 is: 1,660.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.62 : 5,124.26 = 1,107.12 : x
  2. Step 2: Convert to fraction form
    3,415.62/5,124.26 = 1,107.12/x
  3. Step 3: Cross multiply
    3,415.62x = 5,124.26 × 1,107.12
  4. Step 4: Simplify right side
    3,415.62x = 5,673,170.73
  5. Step 5: Solve for x
    x = 5,673,170.73/3,415.62
  6. Step 6: Final answer
    x = 1,660.95

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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.