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Finding the Fourth Proportional to 4,885.80, 7,336.80 and 3,249.60

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Solution

The fourth proportional to 4,885.80, 7,336.80 and 3,249.60 is: 4,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.80 : 7,336.80 = 3,249.60 : x
  2. Step 2: Convert to fraction form
    4,885.80/7,336.80 = 3,249.60/x
  3. Step 3: Cross multiply
    4,885.80x = 7,336.80 × 3,249.60
  4. Step 4: Simplify right side
    4,885.80x = 23,841,665.28
  5. Step 5: Solve for x
    x = 23,841,665.28/4,885.80
  6. Step 6: Final answer
    x = 4,879.79

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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.