Home / 3,211.73-4,429.81-2,031.66

Finding the Fourth Proportional to 3,211.73, 4,429.81 and 2,031.66

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Solution

The fourth proportional to 3,211.73, 4,429.81 and 2,031.66 is: 2,802.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.73 : 4,429.81 = 2,031.66 : x
  2. Step 2: Convert to fraction form
    3,211.73/4,429.81 = 2,031.66/x
  3. Step 3: Cross multiply
    3,211.73x = 4,429.81 × 2,031.66
  4. Step 4: Simplify right side
    3,211.73x = 8,999,867.78
  5. Step 5: Solve for x
    x = 8,999,867.78/3,211.73
  6. Step 6: Final answer
    x = 2,802.19

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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.