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Finding the Fourth Proportional to 3,310.89, 4,962.90 and 1,118.88

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Solution

The fourth proportional to 3,310.89, 4,962.90 and 1,118.88 is: 1,677.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.89 : 4,962.90 = 1,118.88 : x
  2. Step 2: Convert to fraction form
    3,310.89/4,962.90 = 1,118.88/x
  3. Step 3: Cross multiply
    3,310.89x = 4,962.90 × 1,118.88
  4. Step 4: Simplify right side
    3,310.89x = 5,552,889.55
  5. Step 5: Solve for x
    x = 5,552,889.55/3,310.89
  6. Step 6: Final answer
    x = 1,677.16

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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.