Home / 3,849.98-5,312.66-2,171.82

Finding the Fourth Proportional to 3,849.98, 5,312.66 and 2,171.82

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Solution

The fourth proportional to 3,849.98, 5,312.66 and 2,171.82 is: 2,996.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.98 : 5,312.66 = 2,171.82 : x
  2. Step 2: Convert to fraction form
    3,849.98/5,312.66 = 2,171.82/x
  3. Step 3: Cross multiply
    3,849.98x = 5,312.66 × 2,171.82
  4. Step 4: Simplify right side
    3,849.98x = 11,538,141.24
  5. Step 5: Solve for x
    x = 11,538,141.24/3,849.98
  6. Step 6: Final answer
    x = 2,996.94

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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.