Home / 3,780.14-5,217.63-2,287.82

Finding the Fourth Proportional to 3,780.14, 5,217.63 and 2,287.82

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Solution

The fourth proportional to 3,780.14, 5,217.63 and 2,287.82 is: 3,157.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.14 : 5,217.63 = 2,287.82 : x
  2. Step 2: Convert to fraction form
    3,780.14/5,217.63 = 2,287.82/x
  3. Step 3: Cross multiply
    3,780.14x = 5,217.63 × 2,287.82
  4. Step 4: Simplify right side
    3,780.14x = 11,936,998.27
  5. Step 5: Solve for x
    x = 11,936,998.27/3,780.14
  6. Step 6: Final answer
    x = 3,157.82

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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.