Home / 3,379.06-4,663.20-1,981.81

Finding the Fourth Proportional to 3,379.06, 4,663.20 and 1,981.81

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Solution

The fourth proportional to 3,379.06, 4,663.20 and 1,981.81 is: 2,734.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.06 : 4,663.20 = 1,981.81 : x
  2. Step 2: Convert to fraction form
    3,379.06/4,663.20 = 1,981.81/x
  3. Step 3: Cross multiply
    3,379.06x = 4,663.20 × 1,981.81
  4. Step 4: Simplify right side
    3,379.06x = 9,241,576.39
  5. Step 5: Solve for x
    x = 9,241,576.39/3,379.06
  6. Step 6: Final answer
    x = 2,734.95

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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.