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Finding the Fourth Proportional to 3,255.53, 4,883.30 and 790.31

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Solution

The fourth proportional to 3,255.53, 4,883.30 and 790.31 is: 1,185.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.53 : 4,883.30 = 790.31 : x
  2. Step 2: Convert to fraction form
    3,255.53/4,883.30 = 790.31/x
  3. Step 3: Cross multiply
    3,255.53x = 4,883.30 × 790.31
  4. Step 4: Simplify right side
    3,255.53x = 3,859,316.87
  5. Step 5: Solve for x
    x = 3,859,316.87/3,255.53
  6. Step 6: Final answer
    x = 1,185.47

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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.