Home / 3,927.26-5,419.62-2,158.82

Finding the Fourth Proportional to 3,927.26, 5,419.62 and 2,158.82

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Solution

The fourth proportional to 3,927.26, 5,419.62 and 2,158.82 is: 2,979.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.26 : 5,419.62 = 2,158.82 : x
  2. Step 2: Convert to fraction form
    3,927.26/5,419.62 = 2,158.82/x
  3. Step 3: Cross multiply
    3,927.26x = 5,419.62 × 2,158.82
  4. Step 4: Simplify right side
    3,927.26x = 11,699,973.25
  5. Step 5: Solve for x
    x = 11,699,973.25/3,927.26
  6. Step 6: Final answer
    x = 2,979.17

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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.