Home / 5,212.92-7,815.89-2,874.04

Finding the Fourth Proportional to 5,212.92, 7,815.89 and 2,874.04

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Solution

The fourth proportional to 5,212.92, 7,815.89 and 2,874.04 is: 4,309.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.92 : 7,815.89 = 2,874.04 : x
  2. Step 2: Convert to fraction form
    5,212.92/7,815.89 = 2,874.04/x
  3. Step 3: Cross multiply
    5,212.92x = 7,815.89 × 2,874.04
  4. Step 4: Simplify right side
    5,212.92x = 22,463,166.13
  5. Step 5: Solve for x
    x = 22,463,166.13/5,212.92
  6. Step 6: Final answer
    x = 4,309.14

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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.