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Finding the Fourth Proportional to 6,191.67, 9,289.88 and 3,728.25

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Solution

The fourth proportional to 6,191.67, 9,289.88 and 3,728.25 is: 5,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,191.67 : 9,289.88 = 3,728.25 : x
  2. Step 2: Convert to fraction form
    6,191.67/9,289.88 = 3,728.25/x
  3. Step 3: Cross multiply
    6,191.67x = 9,289.88 × 3,728.25
  4. Step 4: Simplify right side
    6,191.67x = 34,634,976.47
  5. Step 5: Solve for x
    x = 34,634,976.47/6,191.67
  6. Step 6: Final answer
    x = 5,593.80

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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.