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Finding the Fourth Proportional to 3,264.20, 4,893.10 and 2,918.60

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Solution

The fourth proportional to 3,264.20, 4,893.10 and 2,918.60 is: 4,375.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,264.20 : 4,893.10 = 2,918.60 : x
  2. Step 2: Convert to fraction form
    3,264.20/4,893.10 = 2,918.60/x
  3. Step 3: Cross multiply
    3,264.20x = 4,893.10 × 2,918.60
  4. Step 4: Simplify right side
    3,264.20x = 14,281,001.66
  5. Step 5: Solve for x
    x = 14,281,001.66/3,264.20
  6. Step 6: Final answer
    x = 4,375.04

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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.