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Finding the Fourth Proportional to 3,668.99, 5,502.62 and 2,188.62

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Solution

The fourth proportional to 3,668.99, 5,502.62 and 2,188.62 is: 3,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.99 : 5,502.62 = 2,188.62 : x
  2. Step 2: Convert to fraction form
    3,668.99/5,502.62 = 2,188.62/x
  3. Step 3: Cross multiply
    3,668.99x = 5,502.62 × 2,188.62
  4. Step 4: Simplify right side
    3,668.99x = 12,043,133.24
  5. Step 5: Solve for x
    x = 12,043,133.24/3,668.99
  6. Step 6: Final answer
    x = 3,282.42

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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.