Home / 7,929.29-11,893.94-2,085.87

Finding the Fourth Proportional to 7,929.29, 11,893.94 and 2,085.87

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Solution

The fourth proportional to 7,929.29, 11,893.94 and 2,085.87 is: 3,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.29 : 11,893.94 = 2,085.87 : x
  2. Step 2: Convert to fraction form
    7,929.29/11,893.94 = 2,085.87/x
  3. Step 3: Cross multiply
    7,929.29x = 11,893.94 × 2,085.87
  4. Step 4: Simplify right side
    7,929.29x = 24,809,202.20
  5. Step 5: Solve for x
    x = 24,809,202.20/7,929.29
  6. Step 6: Final answer
    x = 3,128.81

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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.