Home / 3,640.10-5,452.05-1,906.70

Finding the Fourth Proportional to 3,640.10, 5,452.05 and 1,906.70

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Solution

The fourth proportional to 3,640.10, 5,452.05 and 1,906.70 is: 2,855.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.10 : 5,452.05 = 1,906.70 : x
  2. Step 2: Convert to fraction form
    3,640.10/5,452.05 = 1,906.70/x
  3. Step 3: Cross multiply
    3,640.10x = 5,452.05 × 1,906.70
  4. Step 4: Simplify right side
    3,640.10x = 10,395,423.74
  5. Step 5: Solve for x
    x = 10,395,423.74/3,640.10
  6. Step 6: Final answer
    x = 2,855.81

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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.