Home / 5,129.26-7,692.79-1,619.54

Finding the Fourth Proportional to 5,129.26, 7,692.79 and 1,619.54

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Solution

The fourth proportional to 5,129.26, 7,692.79 and 1,619.54 is: 2,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.26 : 7,692.79 = 1,619.54 : x
  2. Step 2: Convert to fraction form
    5,129.26/7,692.79 = 1,619.54/x
  3. Step 3: Cross multiply
    5,129.26x = 7,692.79 × 1,619.54
  4. Step 4: Simplify right side
    5,129.26x = 12,458,773.02
  5. Step 5: Solve for x
    x = 12,458,773.02/5,129.26
  6. Step 6: Final answer
    x = 2,428.96

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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.