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Finding the Fourth Proportional to 3,668.54, 5,065.51 and 3,388.68

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Solution

The fourth proportional to 3,668.54, 5,065.51 and 3,388.68 is: 4,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.54 : 5,065.51 = 3,388.68 : x
  2. Step 2: Convert to fraction form
    3,668.54/5,065.51 = 3,388.68/x
  3. Step 3: Cross multiply
    3,668.54x = 5,065.51 × 3,388.68
  4. Step 4: Simplify right side
    3,668.54x = 17,165,392.43
  5. Step 5: Solve for x
    x = 17,165,392.43/3,668.54
  6. Step 6: Final answer
    x = 4,679.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.