Home / 5,626.82-7,764.94-3,109.03

Finding the Fourth Proportional to 5,626.82, 7,764.94 and 3,109.03

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Solution

The fourth proportional to 5,626.82, 7,764.94 and 3,109.03 is: 4,290.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.82 : 7,764.94 = 3,109.03 : x
  2. Step 2: Convert to fraction form
    5,626.82/7,764.94 = 3,109.03/x
  3. Step 3: Cross multiply
    5,626.82x = 7,764.94 × 3,109.03
  4. Step 4: Simplify right side
    5,626.82x = 24,141,431.41
  5. Step 5: Solve for x
    x = 24,141,431.41/5,626.82
  6. Step 6: Final answer
    x = 4,290.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.