Home / 3,179.81-4,387.12-2,061.61

Finding the Fourth Proportional to 3,179.81, 4,387.12 and 2,061.61

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Solution

The fourth proportional to 3,179.81, 4,387.12 and 2,061.61 is: 2,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.81 : 4,387.12 = 2,061.61 : x
  2. Step 2: Convert to fraction form
    3,179.81/4,387.12 = 2,061.61/x
  3. Step 3: Cross multiply
    3,179.81x = 4,387.12 × 2,061.61
  4. Step 4: Simplify right side
    3,179.81x = 9,044,530.46
  5. Step 5: Solve for x
    x = 9,044,530.46/3,179.81
  6. Step 6: Final answer
    x = 2,844.36

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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.