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Finding the Fourth Proportional to 6,203.55, 9,311.00 and 2,918.60

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Solution

The fourth proportional to 6,203.55, 9,311.00 and 2,918.60 is: 4,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,203.55 : 9,311.00 = 2,918.60 : x
  2. Step 2: Convert to fraction form
    6,203.55/9,311.00 = 2,918.60/x
  3. Step 3: Cross multiply
    6,203.55x = 9,311.00 × 2,918.60
  4. Step 4: Simplify right side
    6,203.55x = 27,175,023.45
  5. Step 5: Solve for x
    x = 27,175,023.45/6,203.55
  6. Step 6: Final answer
    x = 4,380.56

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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.