Home / 4,512.20-6,765.90-1,912.20

Finding the Fourth Proportional to 4,512.20, 6,765.90 and 1,912.20

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Solution

The fourth proportional to 4,512.20, 6,765.90 and 1,912.20 is: 2,867.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,512.20 : 6,765.90 = 1,912.20 : x
  2. Step 2: Convert to fraction form
    4,512.20/6,765.90 = 1,912.20/x
  3. Step 3: Cross multiply
    4,512.20x = 6,765.90 × 1,912.20
  4. Step 4: Simplify right side
    4,512.20x = 12,937,753.98
  5. Step 5: Solve for x
    x = 12,937,753.98/4,512.20
  6. Step 6: Final answer
    x = 2,867.28

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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.