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Finding the Fourth Proportional to 6,601.76, 9,895.80 and 2,217.74

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Solution

The fourth proportional to 6,601.76, 9,895.80 and 2,217.74 is: 3,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.76 : 9,895.80 = 2,217.74 : x
  2. Step 2: Convert to fraction form
    6,601.76/9,895.80 = 2,217.74/x
  3. Step 3: Cross multiply
    6,601.76x = 9,895.80 × 2,217.74
  4. Step 4: Simplify right side
    6,601.76x = 21,946,311.49
  5. Step 5: Solve for x
    x = 21,946,311.49/6,601.76
  6. Step 6: Final answer
    x = 3,324.31

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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.