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Finding the Fourth Proportional to 3,940.70, 5,911.04 and 2,704.35

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Solution

The fourth proportional to 3,940.70, 5,911.04 and 2,704.35 is: 4,056.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.70 : 5,911.04 = 2,704.35 : x
  2. Step 2: Convert to fraction form
    3,940.70/5,911.04 = 2,704.35/x
  3. Step 3: Cross multiply
    3,940.70x = 5,911.04 × 2,704.35
  4. Step 4: Simplify right side
    3,940.70x = 15,985,507.50
  5. Step 5: Solve for x
    x = 15,985,507.50/3,940.70
  6. Step 6: Final answer
    x = 4,056.52

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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.