Home / 3,375.80-4,661.82-3,191.72

Finding the Fourth Proportional to 3,375.80, 4,661.82 and 3,191.72

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Solution

The fourth proportional to 3,375.80, 4,661.82 and 3,191.72 is: 4,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.80 : 4,661.82 = 3,191.72 : x
  2. Step 2: Convert to fraction form
    3,375.80/4,661.82 = 3,191.72/x
  3. Step 3: Cross multiply
    3,375.80x = 4,661.82 × 3,191.72
  4. Step 4: Simplify right side
    3,375.80x = 14,879,208.17
  5. Step 5: Solve for x
    x = 14,879,208.17/3,375.80
  6. Step 6: Final answer
    x = 4,407.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.