Home / 6,760.75-10,142.76-2,143.75

Finding the Fourth Proportional to 6,760.75, 10,142.76 and 2,143.75

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Solution

The fourth proportional to 6,760.75, 10,142.76 and 2,143.75 is: 3,216.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,760.75 : 10,142.76 = 2,143.75 : x
  2. Step 2: Convert to fraction form
    6,760.75/10,142.76 = 2,143.75/x
  3. Step 3: Cross multiply
    6,760.75x = 10,142.76 × 2,143.75
  4. Step 4: Simplify right side
    6,760.75x = 21,743,541.75
  5. Step 5: Solve for x
    x = 21,743,541.75/6,760.75
  6. Step 6: Final answer
    x = 3,216.14

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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.