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Finding the Fourth Proportional to 5,368.53, 7,400.79 and 3,770.31

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Solution

The fourth proportional to 5,368.53, 7,400.79 and 3,770.31 is: 5,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.53 : 7,400.79 = 3,770.31 : x
  2. Step 2: Convert to fraction form
    5,368.53/7,400.79 = 3,770.31/x
  3. Step 3: Cross multiply
    5,368.53x = 7,400.79 × 3,770.31
  4. Step 4: Simplify right side
    5,368.53x = 27,903,272.54
  5. Step 5: Solve for x
    x = 27,903,272.54/5,368.53
  6. Step 6: Final answer
    x = 5,197.56

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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.