Home / 3,780.39-5,216.94-2,208.18

Finding the Fourth Proportional to 3,780.39, 5,216.94 and 2,208.18

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Solution

The fourth proportional to 3,780.39, 5,216.94 and 2,208.18 is: 3,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.39 : 5,216.94 = 2,208.18 : x
  2. Step 2: Convert to fraction form
    3,780.39/5,216.94 = 2,208.18/x
  3. Step 3: Cross multiply
    3,780.39x = 5,216.94 × 2,208.18
  4. Step 4: Simplify right side
    3,780.39x = 11,519,942.57
  5. Step 5: Solve for x
    x = 11,519,942.57/3,780.39
  6. Step 6: Final answer
    x = 3,047.29

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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.