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Finding the Fourth Proportional to 3,615.84, 5,450.49 and 3,404.43

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Solution

The fourth proportional to 3,615.84, 5,450.49 and 3,404.43 is: 5,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.84 : 5,450.49 = 3,404.43 : x
  2. Step 2: Convert to fraction form
    3,615.84/5,450.49 = 3,404.43/x
  3. Step 3: Cross multiply
    3,615.84x = 5,450.49 × 3,404.43
  4. Step 4: Simplify right side
    3,615.84x = 18,555,811.67
  5. Step 5: Solve for x
    x = 18,555,811.67/3,615.84
  6. Step 6: Final answer
    x = 5,131.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.