Home / 3,780.15-5,216.31-2,207.94

Finding the Fourth Proportional to 3,780.15, 5,216.31 and 2,207.94

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Solution

The fourth proportional to 3,780.15, 5,216.31 and 2,207.94 is: 3,046.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.15 : 5,216.31 = 2,207.94 : x
  2. Step 2: Convert to fraction form
    3,780.15/5,216.31 = 2,207.94/x
  3. Step 3: Cross multiply
    3,780.15x = 5,216.31 × 2,207.94
  4. Step 4: Simplify right side
    3,780.15x = 11,517,299.50
  5. Step 5: Solve for x
    x = 11,517,299.50/3,780.15
  6. Step 6: Final answer
    x = 3,046.78

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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.