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Finding the Fourth Proportional to 5,691.40, 8,522.50 and 4,816.60

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Solution

The fourth proportional to 5,691.40, 8,522.50 and 4,816.60 is: 7,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.40 : 8,522.50 = 4,816.60 : x
  2. Step 2: Convert to fraction form
    5,691.40/8,522.50 = 4,816.60/x
  3. Step 3: Cross multiply
    5,691.40x = 8,522.50 × 4,816.60
  4. Step 4: Simplify right side
    5,691.40x = 41,049,473.50
  5. Step 5: Solve for x
    x = 41,049,473.50/5,691.40
  6. Step 6: Final answer
    x = 7,212.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.