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Finding the Fourth Proportional to 3,668.06, 5,502.90 and 1,720.82

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Solution

The fourth proportional to 3,668.06, 5,502.90 and 1,720.82 is: 2,581.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.06 : 5,502.90 = 1,720.82 : x
  2. Step 2: Convert to fraction form
    3,668.06/5,502.90 = 1,720.82/x
  3. Step 3: Cross multiply
    3,668.06x = 5,502.90 × 1,720.82
  4. Step 4: Simplify right side
    3,668.06x = 9,469,500.38
  5. Step 5: Solve for x
    x = 9,469,500.38/3,668.06
  6. Step 6: Final answer
    x = 2,581.61

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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.