Home / 3,854.92-5,319.80-2,086.54

Finding the Fourth Proportional to 3,854.92, 5,319.80 and 2,086.54

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Solution

The fourth proportional to 3,854.92, 5,319.80 and 2,086.54 is: 2,879.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.92 : 5,319.80 = 2,086.54 : x
  2. Step 2: Convert to fraction form
    3,854.92/5,319.80 = 2,086.54/x
  3. Step 3: Cross multiply
    3,854.92x = 5,319.80 × 2,086.54
  4. Step 4: Simplify right side
    3,854.92x = 11,099,975.49
  5. Step 5: Solve for x
    x = 11,099,975.49/3,854.92
  6. Step 6: Final answer
    x = 2,879.43

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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.