Home / 3,780.32-5,216.07-2,208.11

Finding the Fourth Proportional to 3,780.32, 5,216.07 and 2,208.11

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Solution

The fourth proportional to 3,780.32, 5,216.07 and 2,208.11 is: 3,046.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.32 : 5,216.07 = 2,208.11 : x
  2. Step 2: Convert to fraction form
    3,780.32/5,216.07 = 2,208.11/x
  3. Step 3: Cross multiply
    3,780.32x = 5,216.07 × 2,208.11
  4. Step 4: Simplify right side
    3,780.32x = 11,517,630.25
  5. Step 5: Solve for x
    x = 11,517,630.25/3,780.32
  6. Step 6: Final answer
    x = 3,046.74

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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.