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Finding the Fourth Proportional to 3,199.36, 4,799.08 and 890.88

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Solution

The fourth proportional to 3,199.36, 4,799.08 and 890.88 is: 1,336.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.36 : 4,799.08 = 890.88 : x
  2. Step 2: Convert to fraction form
    3,199.36/4,799.08 = 890.88/x
  3. Step 3: Cross multiply
    3,199.36x = 4,799.08 × 890.88
  4. Step 4: Simplify right side
    3,199.36x = 4,275,404.39
  5. Step 5: Solve for x
    x = 4,275,404.39/3,199.36
  6. Step 6: Final answer
    x = 1,336.33

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1.5x scale

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.