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Finding the Fourth Proportional to 2,848.64, 4,268.64 and 2,114.78

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Solution

The fourth proportional to 2,848.64, 4,268.64 and 2,114.78 is: 3,168.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.64 : 4,268.64 = 2,114.78 : x
  2. Step 2: Convert to fraction form
    2,848.64/4,268.64 = 2,114.78/x
  3. Step 3: Cross multiply
    2,848.64x = 4,268.64 × 2,114.78
  4. Step 4: Simplify right side
    2,848.64x = 9,027,234.50
  5. Step 5: Solve for x
    x = 9,027,234.50/2,848.64
  6. Step 6: Final answer
    x = 3,168.96

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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.