Home / 3,771.09-5,202.68-2,778.74

Finding the Fourth Proportional to 3,771.09, 5,202.68 and 2,778.74

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Solution

The fourth proportional to 3,771.09, 5,202.68 and 2,778.74 is: 3,833.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.09 : 5,202.68 = 2,778.74 : x
  2. Step 2: Convert to fraction form
    3,771.09/5,202.68 = 2,778.74/x
  3. Step 3: Cross multiply
    3,771.09x = 5,202.68 × 2,778.74
  4. Step 4: Simplify right side
    3,771.09x = 14,456,895.02
  5. Step 5: Solve for x
    x = 14,456,895.02/3,771.09
  6. Step 6: Final answer
    x = 3,833.61

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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.