Home / 2,850.72-4,276.08-1,120.56

Finding the Fourth Proportional to 2,850.72, 4,276.08 and 1,120.56

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Solution

The fourth proportional to 2,850.72, 4,276.08 and 1,120.56 is: 1,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.72 : 4,276.08 = 1,120.56 : x
  2. Step 2: Convert to fraction form
    2,850.72/4,276.08 = 1,120.56/x
  3. Step 3: Cross multiply
    2,850.72x = 4,276.08 × 1,120.56
  4. Step 4: Simplify right side
    2,850.72x = 4,791,604.20
  5. Step 5: Solve for x
    x = 4,791,604.20/2,850.72
  6. Step 6: Final answer
    x = 1,680.84

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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.