Home / 3,896.61-5,376.73-2,218.08

Finding the Fourth Proportional to 3,896.61, 5,376.73 and 2,218.08

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Solution

The fourth proportional to 3,896.61, 5,376.73 and 2,218.08 is: 3,060.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.61 : 5,376.73 = 2,218.08 : x
  2. Step 2: Convert to fraction form
    3,896.61/5,376.73 = 2,218.08/x
  3. Step 3: Cross multiply
    3,896.61x = 5,376.73 × 2,218.08
  4. Step 4: Simplify right side
    3,896.61x = 11,926,036.05
  5. Step 5: Solve for x
    x = 11,926,036.05/3,896.61
  6. Step 6: Final answer
    x = 3,060.62

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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.