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Finding the Fourth Proportional to 3,243.82, 4,868.76 and 1,489.77

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Solution

The fourth proportional to 3,243.82, 4,868.76 and 1,489.77 is: 2,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.82 : 4,868.76 = 1,489.77 : x
  2. Step 2: Convert to fraction form
    3,243.82/4,868.76 = 1,489.77/x
  3. Step 3: Cross multiply
    3,243.82x = 4,868.76 × 1,489.77
  4. Step 4: Simplify right side
    3,243.82x = 7,253,332.59
  5. Step 5: Solve for x
    x = 7,253,332.59/3,243.82
  6. Step 6: Final answer
    x = 2,236.05

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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.