Home / 7,140.27-10,704.24-2,760.81

Finding the Fourth Proportional to 7,140.27, 10,704.24 and 2,760.81

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Solution

The fourth proportional to 7,140.27, 10,704.24 and 2,760.81 is: 4,138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.27 : 10,704.24 = 2,760.81 : x
  2. Step 2: Convert to fraction form
    7,140.27/10,704.24 = 2,760.81/x
  3. Step 3: Cross multiply
    7,140.27x = 10,704.24 × 2,760.81
  4. Step 4: Simplify right side
    7,140.27x = 29,552,372.83
  5. Step 5: Solve for x
    x = 29,552,372.83/7,140.27
  6. Step 6: Final answer
    x = 4,138.83

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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.