Home / 7,620.27-11,431.77-2,692.77

Finding the Fourth Proportional to 7,620.27, 11,431.77 and 2,692.77

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Solution

The fourth proportional to 7,620.27, 11,431.77 and 2,692.77 is: 4,039.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.27 : 11,431.77 = 2,692.77 : x
  2. Step 2: Convert to fraction form
    7,620.27/11,431.77 = 2,692.77/x
  3. Step 3: Cross multiply
    7,620.27x = 11,431.77 × 2,692.77
  4. Step 4: Simplify right side
    7,620.27x = 30,783,127.30
  5. Step 5: Solve for x
    x = 30,783,127.30/7,620.27
  6. Step 6: Final answer
    x = 4,039.64

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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.