Home / 3,788.64-5,227.92-2,216.80

Finding the Fourth Proportional to 3,788.64, 5,227.92 and 2,216.80

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Solution

The fourth proportional to 3,788.64, 5,227.92 and 2,216.80 is: 3,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.64 : 5,227.92 = 2,216.80 : x
  2. Step 2: Convert to fraction form
    3,788.64/5,227.92 = 2,216.80/x
  3. Step 3: Cross multiply
    3,788.64x = 5,227.92 × 2,216.80
  4. Step 4: Simplify right side
    3,788.64x = 11,589,253.06
  5. Step 5: Solve for x
    x = 11,589,253.06/3,788.64
  6. Step 6: Final answer
    x = 3,058.95

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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.