Home / 3,896.35-5,376.95-2,127.95

Finding the Fourth Proportional to 3,896.35, 5,376.95 and 2,127.95

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Solution

The fourth proportional to 3,896.35, 5,376.95 and 2,127.95 is: 2,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.35 : 5,376.95 = 2,127.95 : x
  2. Step 2: Convert to fraction form
    3,896.35/5,376.95 = 2,127.95/x
  3. Step 3: Cross multiply
    3,896.35x = 5,376.95 × 2,127.95
  4. Step 4: Simplify right side
    3,896.35x = 11,441,899.51
  5. Step 5: Solve for x
    x = 11,441,899.51/3,896.35
  6. Step 6: Final answer
    x = 2,936.57

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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.