Home / 2,760.62-3,813.32-2,720.45

Finding the Fourth Proportional to 2,760.62, 3,813.32 and 2,720.45

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Solution

The fourth proportional to 2,760.62, 3,813.32 and 2,720.45 is: 3,757.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.62 : 3,813.32 = 2,720.45 : x
  2. Step 2: Convert to fraction form
    2,760.62/3,813.32 = 2,720.45/x
  3. Step 3: Cross multiply
    2,760.62x = 3,813.32 × 2,720.45
  4. Step 4: Simplify right side
    2,760.62x = 10,373,962.73
  5. Step 5: Solve for x
    x = 10,373,962.73/2,760.62
  6. Step 6: Final answer
    x = 3,757.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.