Home / 3,896.89-5,377.99-2,218.84

Finding the Fourth Proportional to 3,896.89, 5,377.99 and 2,218.84

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Solution

The fourth proportional to 3,896.89, 5,377.99 and 2,218.84 is: 3,062.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.89 : 5,377.99 = 2,218.84 : x
  2. Step 2: Convert to fraction form
    3,896.89/5,377.99 = 2,218.84/x
  3. Step 3: Cross multiply
    3,896.89x = 5,377.99 × 2,218.84
  4. Step 4: Simplify right side
    3,896.89x = 11,932,899.33
  5. Step 5: Solve for x
    x = 11,932,899.33/3,896.89
  6. Step 6: Final answer
    x = 3,062.16

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1.5x scale

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.