Home / 3,780.74-5,217.23-2,187.14

Finding the Fourth Proportional to 3,780.74, 5,217.23 and 2,187.14

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Solution

The fourth proportional to 3,780.74, 5,217.23 and 2,187.14 is: 3,018.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.74 : 5,217.23 = 2,187.14 : x
  2. Step 2: Convert to fraction form
    3,780.74/5,217.23 = 2,187.14/x
  3. Step 3: Cross multiply
    3,780.74x = 5,217.23 × 2,187.14
  4. Step 4: Simplify right side
    3,780.74x = 11,410,791.80
  5. Step 5: Solve for x
    x = 11,410,791.80/3,780.74
  6. Step 6: Final answer
    x = 3,018.14

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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.