Home / 7,214.91-10,822.11-2,771.43

Finding the Fourth Proportional to 7,214.91, 10,822.11 and 2,771.43

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Solution

The fourth proportional to 7,214.91, 10,822.11 and 2,771.43 is: 4,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.91 : 10,822.11 = 2,771.43 : x
  2. Step 2: Convert to fraction form
    7,214.91/10,822.11 = 2,771.43/x
  3. Step 3: Cross multiply
    7,214.91x = 10,822.11 × 2,771.43
  4. Step 4: Simplify right side
    7,214.91x = 29,992,720.32
  5. Step 5: Solve for x
    x = 29,992,720.32/7,214.91
  6. Step 6: Final answer
    x = 4,157.05

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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.