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Finding the Fourth Proportional to 6,190.60, 9,277.80 and 2,489.80

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Solution

The fourth proportional to 6,190.60, 9,277.80 and 2,489.80 is: 3,731.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,190.60 : 9,277.80 = 2,489.80 : x
  2. Step 2: Convert to fraction form
    6,190.60/9,277.80 = 2,489.80/x
  3. Step 3: Cross multiply
    6,190.60x = 9,277.80 × 2,489.80
  4. Step 4: Simplify right side
    6,190.60x = 23,099,866.44
  5. Step 5: Solve for x
    x = 23,099,866.44/6,190.60
  6. Step 6: Final answer
    x = 3,731.44

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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.