Home / 3,181.94-4,391.12-1,765.66

Finding the Fourth Proportional to 3,181.94, 4,391.12 and 1,765.66

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Solution

The fourth proportional to 3,181.94, 4,391.12 and 1,765.66 is: 2,436.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.94 : 4,391.12 = 1,765.66 : x
  2. Step 2: Convert to fraction form
    3,181.94/4,391.12 = 1,765.66/x
  3. Step 3: Cross multiply
    3,181.94x = 4,391.12 × 1,765.66
  4. Step 4: Simplify right side
    3,181.94x = 7,753,221.64
  5. Step 5: Solve for x
    x = 7,753,221.64/3,181.94
  6. Step 6: Final answer
    x = 2,436.63

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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.