Home / 2,588.26-3,882.66-857.02

Finding the Fourth Proportional to 2,588.26, 3,882.66 and 857.02

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Solution

The fourth proportional to 2,588.26, 3,882.66 and 857.02 is: 1,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.26 : 3,882.66 = 857.02 : x
  2. Step 2: Convert to fraction form
    2,588.26/3,882.66 = 857.02/x
  3. Step 3: Cross multiply
    2,588.26x = 3,882.66 × 857.02
  4. Step 4: Simplify right side
    2,588.26x = 3,327,517.27
  5. Step 5: Solve for x
    x = 3,327,517.27/2,588.26
  6. Step 6: Final answer
    x = 1,285.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.