Home / 5,249.10-7,873.94-2,128.65

Finding the Fourth Proportional to 5,249.10, 7,873.94 and 2,128.65

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Solution

The fourth proportional to 5,249.10, 7,873.94 and 2,128.65 is: 3,193.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.10 : 7,873.94 = 2,128.65 : x
  2. Step 2: Convert to fraction form
    5,249.10/7,873.94 = 2,128.65/x
  3. Step 3: Cross multiply
    5,249.10x = 7,873.94 × 2,128.65
  4. Step 4: Simplify right side
    5,249.10x = 16,760,838.18
  5. Step 5: Solve for x
    x = 16,760,838.18/5,249.10
  6. Step 6: Final answer
    x = 3,193.09

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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.