Home / 3,850.11-5,313.15-2,081.72

Finding the Fourth Proportional to 3,850.11, 5,313.15 and 2,081.72

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Solution

The fourth proportional to 3,850.11, 5,313.15 and 2,081.72 is: 2,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.11 : 5,313.15 = 2,081.72 : x
  2. Step 2: Convert to fraction form
    3,850.11/5,313.15 = 2,081.72/x
  3. Step 3: Cross multiply
    3,850.11x = 5,313.15 × 2,081.72
  4. Step 4: Simplify right side
    3,850.11x = 11,060,490.62
  5. Step 5: Solve for x
    x = 11,060,490.62/3,850.11
  6. Step 6: Final answer
    x = 2,872.77

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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.