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Finding the Fourth Proportional to 3,219.81, 4,828.77 and 1,027.95

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Solution

The fourth proportional to 3,219.81, 4,828.77 and 1,027.95 is: 1,541.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.81 : 4,828.77 = 1,027.95 : x
  2. Step 2: Convert to fraction form
    3,219.81/4,828.77 = 1,027.95/x
  3. Step 3: Cross multiply
    3,219.81x = 4,828.77 × 1,027.95
  4. Step 4: Simplify right side
    3,219.81x = 4,963,734.12
  5. Step 5: Solve for x
    x = 4,963,734.12/3,219.81
  6. Step 6: Final answer
    x = 1,541.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.