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Finding the Fourth Proportional to 5,321.45, 7,973.97 and 3,369.56

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Solution

The fourth proportional to 5,321.45, 7,973.97 and 3,369.56 is: 5,049.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.45 : 7,973.97 = 3,369.56 : x
  2. Step 2: Convert to fraction form
    5,321.45/7,973.97 = 3,369.56/x
  3. Step 3: Cross multiply
    5,321.45x = 7,973.97 × 3,369.56
  4. Step 4: Simplify right side
    5,321.45x = 26,868,738.91
  5. Step 5: Solve for x
    x = 26,868,738.91/5,321.45
  6. Step 6: Final answer
    x = 5,049.14

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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.