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Finding the Fourth Proportional to 7,445.60, 11,174.70 and 3,066.20

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Solution

The fourth proportional to 7,445.60, 11,174.70 and 3,066.20 is: 4,601.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.60 : 11,174.70 = 3,066.20 : x
  2. Step 2: Convert to fraction form
    7,445.60/11,174.70 = 3,066.20/x
  3. Step 3: Cross multiply
    7,445.60x = 11,174.70 × 3,066.20
  4. Step 4: Simplify right side
    7,445.60x = 34,263,865.14
  5. Step 5: Solve for x
    x = 34,263,865.14/7,445.60
  6. Step 6: Final answer
    x = 4,601.89

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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.