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Finding the Fourth Proportional to 3,242.88, 4,860.21 and 2,072.43

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Solution

The fourth proportional to 3,242.88, 4,860.21 and 2,072.43 is: 3,106.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.88 : 4,860.21 = 2,072.43 : x
  2. Step 2: Convert to fraction form
    3,242.88/4,860.21 = 2,072.43/x
  3. Step 3: Cross multiply
    3,242.88x = 4,860.21 × 2,072.43
  4. Step 4: Simplify right side
    3,242.88x = 10,072,445.01
  5. Step 5: Solve for x
    x = 10,072,445.01/3,242.88
  6. Step 6: Final answer
    x = 3,106.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.