Home / 5,144.20-7,716.31-1,857.29

Finding the Fourth Proportional to 5,144.20, 7,716.31 and 1,857.29

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Solution

The fourth proportional to 5,144.20, 7,716.31 and 1,857.29 is: 2,785.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.20 : 7,716.31 = 1,857.29 : x
  2. Step 2: Convert to fraction form
    5,144.20/7,716.31 = 1,857.29/x
  3. Step 3: Cross multiply
    5,144.20x = 7,716.31 × 1,857.29
  4. Step 4: Simplify right side
    5,144.20x = 14,331,382.18
  5. Step 5: Solve for x
    x = 14,331,382.18/5,144.20
  6. Step 6: Final answer
    x = 2,785.93

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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.