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Finding the Fourth Proportional to 2,614.50, 3,940.10 and 2,354.80

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Solution

The fourth proportional to 2,614.50, 3,940.10 and 2,354.80 is: 3,548.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,614.50 : 3,940.10 = 2,354.80 : x
  2. Step 2: Convert to fraction form
    2,614.50/3,940.10 = 2,354.80/x
  3. Step 3: Cross multiply
    2,614.50x = 3,940.10 × 2,354.80
  4. Step 4: Simplify right side
    2,614.50x = 9,278,147.48
  5. Step 5: Solve for x
    x = 9,278,147.48/2,614.50
  6. Step 6: Final answer
    x = 3,548.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.