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Finding the Fourth Proportional to 3,668.44, 5,506.98 and 1,478.74

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Solution

The fourth proportional to 3,668.44, 5,506.98 and 1,478.74 is: 2,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.44 : 5,506.98 = 1,478.74 : x
  2. Step 2: Convert to fraction form
    3,668.44/5,506.98 = 1,478.74/x
  3. Step 3: Cross multiply
    3,668.44x = 5,506.98 × 1,478.74
  4. Step 4: Simplify right side
    3,668.44x = 8,143,391.61
  5. Step 5: Solve for x
    x = 8,143,391.61/3,668.44
  6. Step 6: Final answer
    x = 2,219.85

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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.