Home / 3,857.56-5,323.39-2,089.14

Finding the Fourth Proportional to 3,857.56, 5,323.39 and 2,089.14

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Solution

The fourth proportional to 3,857.56, 5,323.39 and 2,089.14 is: 2,882.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.56 : 5,323.39 = 2,089.14 : x
  2. Step 2: Convert to fraction form
    3,857.56/5,323.39 = 2,089.14/x
  3. Step 3: Cross multiply
    3,857.56x = 5,323.39 × 2,089.14
  4. Step 4: Simplify right side
    3,857.56x = 11,121,306.98
  5. Step 5: Solve for x
    x = 11,121,306.98/3,857.56
  6. Step 6: Final answer
    x = 2,882.99

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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.