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Finding the Fourth Proportional to 3,788.32, 5,227.32 and 2,216.92

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Solution

The fourth proportional to 3,788.32, 5,227.32 and 2,216.92 is: 3,059.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.32 : 5,227.32 = 2,216.92 : x
  2. Step 2: Convert to fraction form
    3,788.32/5,227.32 = 2,216.92/x
  3. Step 3: Cross multiply
    3,788.32x = 5,227.32 × 2,216.92
  4. Step 4: Simplify right side
    3,788.32x = 11,588,550.25
  5. Step 5: Solve for x
    x = 11,588,550.25/3,788.32
  6. Step 6: Final answer
    x = 3,059.02

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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.