Home / 5,129.25-7,694.97-1,620.29

Finding the Fourth Proportional to 5,129.25, 7,694.97 and 1,620.29

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Solution

The fourth proportional to 5,129.25, 7,694.97 and 1,620.29 is: 2,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.25 : 7,694.97 = 1,620.29 : x
  2. Step 2: Convert to fraction form
    5,129.25/7,694.97 = 1,620.29/x
  3. Step 3: Cross multiply
    5,129.25x = 7,694.97 × 1,620.29
  4. Step 4: Simplify right side
    5,129.25x = 12,468,044.47
  5. Step 5: Solve for x
    x = 12,468,044.47/5,129.25
  6. Step 6: Final answer
    x = 2,430.77

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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.