Home / 3,198.45-4,795.91-1,117.90

Finding the Fourth Proportional to 3,198.45, 4,795.91 and 1,117.90

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Solution

The fourth proportional to 3,198.45, 4,795.91 and 1,117.90 is: 1,676.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.45 : 4,795.91 = 1,117.90 : x
  2. Step 2: Convert to fraction form
    3,198.45/4,795.91 = 1,117.90/x
  3. Step 3: Cross multiply
    3,198.45x = 4,795.91 × 1,117.90
  4. Step 4: Simplify right side
    3,198.45x = 5,361,352.39
  5. Step 5: Solve for x
    x = 5,361,352.39/3,198.45
  6. Step 6: Final answer
    x = 1,676.23

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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.