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Finding the Fourth Proportional to 2,850.64, 4,276.50 and 902.68

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Solution

The fourth proportional to 2,850.64, 4,276.50 and 902.68 is: 1,354.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.64 : 4,276.50 = 902.68 : x
  2. Step 2: Convert to fraction form
    2,850.64/4,276.50 = 902.68/x
  3. Step 3: Cross multiply
    2,850.64x = 4,276.50 × 902.68
  4. Step 4: Simplify right side
    2,850.64x = 3,860,311.02
  5. Step 5: Solve for x
    x = 3,860,311.02/2,850.64
  6. Step 6: Final answer
    x = 1,354.19

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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.