Home / 2,630.67-3,936.29-2,164.11

Finding the Fourth Proportional to 2,630.67, 3,936.29 and 2,164.11

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Solution

The fourth proportional to 2,630.67, 3,936.29 and 2,164.11 is: 3,238.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.67 : 3,936.29 = 2,164.11 : x
  2. Step 2: Convert to fraction form
    2,630.67/3,936.29 = 2,164.11/x
  3. Step 3: Cross multiply
    2,630.67x = 3,936.29 × 2,164.11
  4. Step 4: Simplify right side
    2,630.67x = 8,518,553.73
  5. Step 5: Solve for x
    x = 8,518,553.73/2,630.67
  6. Step 6: Final answer
    x = 3,238.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.