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Finding the Fourth Proportional to 6,144.45, 9,218.05 and 3,369.70

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Solution

The fourth proportional to 6,144.45, 9,218.05 and 3,369.70 is: 5,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,144.45 : 9,218.05 = 3,369.70 : x
  2. Step 2: Convert to fraction form
    6,144.45/9,218.05 = 3,369.70/x
  3. Step 3: Cross multiply
    6,144.45x = 9,218.05 × 3,369.70
  4. Step 4: Simplify right side
    6,144.45x = 31,062,031.62
  5. Step 5: Solve for x
    x = 31,062,031.62/6,144.45
  6. Step 6: Final answer
    x = 5,055.30

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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.