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Finding the Fourth Proportional to 6,651.92, 9,981.77 and 3,692.86

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Solution

The fourth proportional to 6,651.92, 9,981.77 and 3,692.86 is: 5,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.92 : 9,981.77 = 3,692.86 : x
  2. Step 2: Convert to fraction form
    6,651.92/9,981.77 = 3,692.86/x
  3. Step 3: Cross multiply
    6,651.92x = 9,981.77 × 3,692.86
  4. Step 4: Simplify right side
    6,651.92x = 36,861,229.25
  5. Step 5: Solve for x
    x = 36,861,229.25/6,651.92
  6. Step 6: Final answer
    x = 5,541.44

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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.