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Finding the Fourth Proportional to 3,579.35, 5,369.21 and 2,953.49

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Solution

The fourth proportional to 3,579.35, 5,369.21 and 2,953.49 is: 4,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.35 : 5,369.21 = 2,953.49 : x
  2. Step 2: Convert to fraction form
    3,579.35/5,369.21 = 2,953.49/x
  3. Step 3: Cross multiply
    3,579.35x = 5,369.21 × 2,953.49
  4. Step 4: Simplify right side
    3,579.35x = 15,857,906.70
  5. Step 5: Solve for x
    x = 15,857,906.70/3,579.35
  6. Step 6: Final answer
    x = 4,430.38

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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.