Home / 2,771.76-3,824.91-1,512.79

Finding the Fourth Proportional to 2,771.76, 3,824.91 and 1,512.79

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Solution

The fourth proportional to 2,771.76, 3,824.91 and 1,512.79 is: 2,087.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.76 : 3,824.91 = 1,512.79 : x
  2. Step 2: Convert to fraction form
    2,771.76/3,824.91 = 1,512.79/x
  3. Step 3: Cross multiply
    2,771.76x = 3,824.91 × 1,512.79
  4. Step 4: Simplify right side
    2,771.76x = 5,786,276.04
  5. Step 5: Solve for x
    x = 5,786,276.04/2,771.76
  6. Step 6: Final answer
    x = 2,087.58

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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.