Home / 3,896.26-5,373.99-2,478.66

Finding the Fourth Proportional to 3,896.26, 5,373.99 and 2,478.66

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Solution

The fourth proportional to 3,896.26, 5,373.99 and 2,478.66 is: 3,418.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.26 : 5,373.99 = 2,478.66 : x
  2. Step 2: Convert to fraction form
    3,896.26/5,373.99 = 2,478.66/x
  3. Step 3: Cross multiply
    3,896.26x = 5,373.99 × 2,478.66
  4. Step 4: Simplify right side
    3,896.26x = 13,320,294.05
  5. Step 5: Solve for x
    x = 13,320,294.05/3,896.26
  6. Step 6: Final answer
    x = 3,418.74

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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.