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Finding the Fourth Proportional to 3,199.60, 4,799.60 and 1,008.64

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Solution

The fourth proportional to 3,199.60, 4,799.60 and 1,008.64 is: 1,513.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.60 : 4,799.60 = 1,008.64 : x
  2. Step 2: Convert to fraction form
    3,199.60/4,799.60 = 1,008.64/x
  3. Step 3: Cross multiply
    3,199.60x = 4,799.60 × 1,008.64
  4. Step 4: Simplify right side
    3,199.60x = 4,841,068.54
  5. Step 5: Solve for x
    x = 4,841,068.54/3,199.60
  6. Step 6: Final answer
    x = 1,513.02

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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.