Home / 5,128.50-7,692.76-2,052.66

Finding the Fourth Proportional to 5,128.50, 7,692.76 and 2,052.66

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Solution

The fourth proportional to 5,128.50, 7,692.76 and 2,052.66 is: 3,078.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.50 : 7,692.76 = 2,052.66 : x
  2. Step 2: Convert to fraction form
    5,128.50/7,692.76 = 2,052.66/x
  3. Step 3: Cross multiply
    5,128.50x = 7,692.76 × 2,052.66
  4. Step 4: Simplify right side
    5,128.50x = 15,790,620.74
  5. Step 5: Solve for x
    x = 15,790,620.74/5,128.50
  6. Step 6: Final answer
    x = 3,078.99

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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.