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Finding the Fourth Proportional to 5,494.44, 7,574.94 and 3,919.80

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Solution

The fourth proportional to 5,494.44, 7,574.94 and 3,919.80 is: 5,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,494.44 : 7,574.94 = 3,919.80 : x
  2. Step 2: Convert to fraction form
    5,494.44/7,574.94 = 3,919.80/x
  3. Step 3: Cross multiply
    5,494.44x = 7,574.94 × 3,919.80
  4. Step 4: Simplify right side
    5,494.44x = 29,692,249.81
  5. Step 5: Solve for x
    x = 29,692,249.81/5,494.44
  6. Step 6: Final answer
    x = 5,404.05

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