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Finding the Fourth Proportional to 6,845.61, 9,446.61 and 3,861.44

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Solution

The fourth proportional to 6,845.61, 9,446.61 and 3,861.44 is: 5,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,845.61 : 9,446.61 = 3,861.44 : x
  2. Step 2: Convert to fraction form
    6,845.61/9,446.61 = 3,861.44/x
  3. Step 3: Cross multiply
    6,845.61x = 9,446.61 × 3,861.44
  4. Step 4: Simplify right side
    6,845.61x = 36,477,517.72
  5. Step 5: Solve for x
    x = 36,477,517.72/6,845.61
  6. Step 6: Final answer
    x = 5,328.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.