Home / 3,512.56-5,270.20-2,126.92

Finding the Fourth Proportional to 3,512.56, 5,270.20 and 2,126.92

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Solution

The fourth proportional to 3,512.56, 5,270.20 and 2,126.92 is: 3,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.56 : 5,270.20 = 2,126.92 : x
  2. Step 2: Convert to fraction form
    3,512.56/5,270.20 = 2,126.92/x
  3. Step 3: Cross multiply
    3,512.56x = 5,270.20 × 2,126.92
  4. Step 4: Simplify right side
    3,512.56x = 11,209,293.78
  5. Step 5: Solve for x
    x = 11,209,293.78/3,512.56
  6. Step 6: Final answer
    x = 3,191.20

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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.