Home / 3,780.44-5,217.02-2,101.96

Finding the Fourth Proportional to 3,780.44, 5,217.02 and 2,101.96

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Solution

The fourth proportional to 3,780.44, 5,217.02 and 2,101.96 is: 2,900.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.44 : 5,217.02 = 2,101.96 : x
  2. Step 2: Convert to fraction form
    3,780.44/5,217.02 = 2,101.96/x
  3. Step 3: Cross multiply
    3,780.44x = 5,217.02 × 2,101.96
  4. Step 4: Simplify right side
    3,780.44x = 10,965,959.57
  5. Step 5: Solve for x
    x = 10,965,959.57/3,780.44
  6. Step 6: Final answer
    x = 2,900.71

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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.