Home / 3,814.30-5,715.78-2,254.65

Finding the Fourth Proportional to 3,814.30, 5,715.78 and 2,254.65

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Solution

The fourth proportional to 3,814.30, 5,715.78 and 2,254.65 is: 3,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.30 : 5,715.78 = 2,254.65 : x
  2. Step 2: Convert to fraction form
    3,814.30/5,715.78 = 2,254.65/x
  3. Step 3: Cross multiply
    3,814.30x = 5,715.78 × 2,254.65
  4. Step 4: Simplify right side
    3,814.30x = 12,887,083.38
  5. Step 5: Solve for x
    x = 12,887,083.38/3,814.30
  6. Step 6: Final answer
    x = 3,378.62

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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.