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Finding the Fourth Proportional to 6,608.60, 9,909.70 and 3,683.80

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Solution

The fourth proportional to 6,608.60, 9,909.70 and 3,683.80 is: 5,523.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.60 : 9,909.70 = 3,683.80 : x
  2. Step 2: Convert to fraction form
    6,608.60/9,909.70 = 3,683.80/x
  3. Step 3: Cross multiply
    6,608.60x = 9,909.70 × 3,683.80
  4. Step 4: Simplify right side
    6,608.60x = 36,505,352.86
  5. Step 5: Solve for x
    x = 36,505,352.86/6,608.60
  6. Step 6: Final answer
    x = 5,523.92

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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.