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Finding the Fourth Proportional to 2,760.80, 4,150.20 and 2,404.40

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Solution

The fourth proportional to 2,760.80, 4,150.20 and 2,404.40 is: 3,614.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.80 : 4,150.20 = 2,404.40 : x
  2. Step 2: Convert to fraction form
    2,760.80/4,150.20 = 2,404.40/x
  3. Step 3: Cross multiply
    2,760.80x = 4,150.20 × 2,404.40
  4. Step 4: Simplify right side
    2,760.80x = 9,978,740.88
  5. Step 5: Solve for x
    x = 9,978,740.88/2,760.80
  6. Step 6: Final answer
    x = 3,614.44

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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.