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Finding the Fourth Proportional to 3,212.94, 4,819.41 and 904.44

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Solution

The fourth proportional to 3,212.94, 4,819.41 and 904.44 is: 1,356.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.94 : 4,819.41 = 904.44 : x
  2. Step 2: Convert to fraction form
    3,212.94/4,819.41 = 904.44/x
  3. Step 3: Cross multiply
    3,212.94x = 4,819.41 × 904.44
  4. Step 4: Simplify right side
    3,212.94x = 4,358,867.18
  5. Step 5: Solve for x
    x = 4,358,867.18/3,212.94
  6. Step 6: Final answer
    x = 1,356.66

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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.