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Finding the Fourth Proportional to 5,631.99, 7,772.03 and 3,114.21

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Solution

The fourth proportional to 5,631.99, 7,772.03 and 3,114.21 is: 4,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.99 : 7,772.03 = 3,114.21 : x
  2. Step 2: Convert to fraction form
    5,631.99/7,772.03 = 3,114.21/x
  3. Step 3: Cross multiply
    5,631.99x = 7,772.03 × 3,114.21
  4. Step 4: Simplify right side
    5,631.99x = 24,203,733.55
  5. Step 5: Solve for x
    x = 24,203,733.55/5,631.99
  6. Step 6: Final answer
    x = 4,297.55

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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.