Home / 3,782.92-5,669.18-2,857.72

Finding the Fourth Proportional to 3,782.92, 5,669.18 and 2,857.72

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Solution

The fourth proportional to 3,782.92, 5,669.18 and 2,857.72 is: 4,282.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.92 : 5,669.18 = 2,857.72 : x
  2. Step 2: Convert to fraction form
    3,782.92/5,669.18 = 2,857.72/x
  3. Step 3: Cross multiply
    3,782.92x = 5,669.18 × 2,857.72
  4. Step 4: Simplify right side
    3,782.92x = 16,200,929.07
  5. Step 5: Solve for x
    x = 16,200,929.07/3,782.92
  6. Step 6: Final answer
    x = 4,282.65

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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.