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Finding the Fourth Proportional to 3,241.50, 4,861.98 and 933

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Solution

The fourth proportional to 3,241.50, 4,861.98 and 933 is: 1,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.50 : 4,861.98 = 933 : x
  2. Step 2: Convert to fraction form
    3,241.50/4,861.98 = 933/x
  3. Step 3: Cross multiply
    3,241.50x = 4,861.98 × 933
  4. Step 4: Simplify right side
    3,241.50x = 4,536,227.34
  5. Step 5: Solve for x
    x = 4,536,227.34/3,241.50
  6. Step 6: Final answer
    x = 1,399.42

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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.