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Finding the Fourth Proportional to 3,861.84, 5,330.70 and 2,372.25

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Solution

The fourth proportional to 3,861.84, 5,330.70 and 2,372.25 is: 3,274.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.84 : 5,330.70 = 2,372.25 : x
  2. Step 2: Convert to fraction form
    3,861.84/5,330.70 = 2,372.25/x
  3. Step 3: Cross multiply
    3,861.84x = 5,330.70 × 2,372.25
  4. Step 4: Simplify right side
    3,861.84x = 12,645,753.08
  5. Step 5: Solve for x
    x = 12,645,753.08/3,861.84
  6. Step 6: Final answer
    x = 3,274.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.