Home / 2,768.20-4,143.60-1,517.08

Finding the Fourth Proportional to 2,768.20, 4,143.60 and 1,517.08

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Solution

The fourth proportional to 2,768.20, 4,143.60 and 1,517.08 is: 2,270.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.20 : 4,143.60 = 1,517.08 : x
  2. Step 2: Convert to fraction form
    2,768.20/4,143.60 = 1,517.08/x
  3. Step 3: Cross multiply
    2,768.20x = 4,143.60 × 1,517.08
  4. Step 4: Simplify right side
    2,768.20x = 6,286,172.69
  5. Step 5: Solve for x
    x = 6,286,172.69/2,768.20
  6. Step 6: Final answer
    x = 2,270.85

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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.