Home / 5,081.31-7,620.57-1,792.62

Finding the Fourth Proportional to 5,081.31, 7,620.57 and 1,792.62

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Solution

The fourth proportional to 5,081.31, 7,620.57 and 1,792.62 is: 2,688.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.31 : 7,620.57 = 1,792.62 : x
  2. Step 2: Convert to fraction form
    5,081.31/7,620.57 = 1,792.62/x
  3. Step 3: Cross multiply
    5,081.31x = 7,620.57 × 1,792.62
  4. Step 4: Simplify right side
    5,081.31x = 13,660,786.19
  5. Step 5: Solve for x
    x = 13,660,786.19/5,081.31
  6. Step 6: Final answer
    x = 2,688.44

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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.