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Finding the Fourth Proportional to 3,228.44, 4,842.72 and 1,148.45

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Solution

The fourth proportional to 3,228.44, 4,842.72 and 1,148.45 is: 1,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.44 : 4,842.72 = 1,148.45 : x
  2. Step 2: Convert to fraction form
    3,228.44/4,842.72 = 1,148.45/x
  3. Step 3: Cross multiply
    3,228.44x = 4,842.72 × 1,148.45
  4. Step 4: Simplify right side
    3,228.44x = 5,561,597.57
  5. Step 5: Solve for x
    x = 5,561,597.57/3,228.44
  6. Step 6: Final answer
    x = 1,722.69

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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.