Home / 7,128.44-10,692.70-2,969.08

Finding the Fourth Proportional to 7,128.44, 10,692.70 and 2,969.08

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Solution

The fourth proportional to 7,128.44, 10,692.70 and 2,969.08 is: 4,453.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.44 : 10,692.70 = 2,969.08 : x
  2. Step 2: Convert to fraction form
    7,128.44/10,692.70 = 2,969.08/x
  3. Step 3: Cross multiply
    7,128.44x = 10,692.70 × 2,969.08
  4. Step 4: Simplify right side
    7,128.44x = 31,747,481.72
  5. Step 5: Solve for x
    x = 31,747,481.72/7,128.44
  6. Step 6: Final answer
    x = 4,453.64

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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.