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Finding the Fourth Proportional to 3,967.55, 5,475.02 and 2,199.14

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Solution

The fourth proportional to 3,967.55, 5,475.02 and 2,199.14 is: 3,034.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.55 : 5,475.02 = 2,199.14 : x
  2. Step 2: Convert to fraction form
    3,967.55/5,475.02 = 2,199.14/x
  3. Step 3: Cross multiply
    3,967.55x = 5,475.02 × 2,199.14
  4. Step 4: Simplify right side
    3,967.55x = 12,040,297.11
  5. Step 5: Solve for x
    x = 12,040,297.11/3,967.55
  6. Step 6: Final answer
    x = 3,034.70

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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.