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Finding the Fourth Proportional to 3,855.26, 5,782.90 and 933.56

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Solution

The fourth proportional to 3,855.26, 5,782.90 and 933.56 is: 1,400.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.26 : 5,782.90 = 933.56 : x
  2. Step 2: Convert to fraction form
    3,855.26/5,782.90 = 933.56/x
  3. Step 3: Cross multiply
    3,855.26x = 5,782.90 × 933.56
  4. Step 4: Simplify right side
    3,855.26x = 5,398,655.21
  5. Step 5: Solve for x
    x = 5,398,655.21/3,855.26
  6. Step 6: Final answer
    x = 1,400.34

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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.