Home / 7,207.78-10,811.76-2,827.30

Finding the Fourth Proportional to 7,207.78, 10,811.76 and 2,827.30

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Solution

The fourth proportional to 7,207.78, 10,811.76 and 2,827.30 is: 4,240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.78 : 10,811.76 = 2,827.30 : x
  2. Step 2: Convert to fraction form
    7,207.78/10,811.76 = 2,827.30/x
  3. Step 3: Cross multiply
    7,207.78x = 10,811.76 × 2,827.30
  4. Step 4: Simplify right side
    7,207.78x = 30,568,089.05
  5. Step 5: Solve for x
    x = 30,568,089.05/7,207.78
  6. Step 6: Final answer
    x = 4,240.99

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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.