Home / 3,861.09-5,326.43-2,288.07

Finding the Fourth Proportional to 3,861.09, 5,326.43 and 2,288.07

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Solution

The fourth proportional to 3,861.09, 5,326.43 and 2,288.07 is: 3,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.09 : 5,326.43 = 2,288.07 : x
  2. Step 2: Convert to fraction form
    3,861.09/5,326.43 = 2,288.07/x
  3. Step 3: Cross multiply
    3,861.09x = 5,326.43 × 2,288.07
  4. Step 4: Simplify right side
    3,861.09x = 12,187,233.25
  5. Step 5: Solve for x
    x = 12,187,233.25/3,861.09
  6. Step 6: Final answer
    x = 3,156.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.