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Finding the Fourth Proportional to 6,760.76, 10,141.12 and 2,143.76

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Solution

The fourth proportional to 6,760.76, 10,141.12 and 2,143.76 is: 3,215.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,760.76 : 10,141.12 = 2,143.76 : x
  2. Step 2: Convert to fraction form
    6,760.76/10,141.12 = 2,143.76/x
  3. Step 3: Cross multiply
    6,760.76x = 10,141.12 × 2,143.76
  4. Step 4: Simplify right side
    6,760.76x = 21,740,127.41
  5. Step 5: Solve for x
    x = 21,740,127.41/6,760.76
  6. Step 6: Final answer
    x = 3,215.63

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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.