Home / 2,771.28-3,825.36-2,376.72

Finding the Fourth Proportional to 2,771.28, 3,825.36 and 2,376.72

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Solution

The fourth proportional to 2,771.28, 3,825.36 and 2,376.72 is: 3,280.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.28 : 3,825.36 = 2,376.72 : x
  2. Step 2: Convert to fraction form
    2,771.28/3,825.36 = 2,376.72/x
  3. Step 3: Cross multiply
    2,771.28x = 3,825.36 × 2,376.72
  4. Step 4: Simplify right side
    2,771.28x = 9,091,809.62
  5. Step 5: Solve for x
    x = 9,091,809.62/2,771.28
  6. Step 6: Final answer
    x = 3,280.73

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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.