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Finding the Fourth Proportional to 3,778.76, 5,668.02 and 2,217.56

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Solution

The fourth proportional to 3,778.76, 5,668.02 and 2,217.56 is: 3,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.76 : 5,668.02 = 2,217.56 : x
  2. Step 2: Convert to fraction form
    3,778.76/5,668.02 = 2,217.56/x
  3. Step 3: Cross multiply
    3,778.76x = 5,668.02 × 2,217.56
  4. Step 4: Simplify right side
    3,778.76x = 12,569,188.60
  5. Step 5: Solve for x
    x = 12,569,188.60/3,778.76
  6. Step 6: Final answer
    x = 3,326.28

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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.