Home / 2,771.28-3,824.40-1,512.34

Finding the Fourth Proportional to 2,771.28, 3,824.40 and 1,512.34

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Solution

The fourth proportional to 2,771.28, 3,824.40 and 1,512.34 is: 2,087.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.28 : 3,824.40 = 1,512.34 : x
  2. Step 2: Convert to fraction form
    2,771.28/3,824.40 = 1,512.34/x
  3. Step 3: Cross multiply
    2,771.28x = 3,824.40 × 1,512.34
  4. Step 4: Simplify right side
    2,771.28x = 5,783,793.10
  5. Step 5: Solve for x
    x = 5,783,793.10/2,771.28
  6. Step 6: Final answer
    x = 2,087.05

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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.