Home / 3,219.10-4,828.94-1,138.88

Finding the Fourth Proportional to 3,219.10, 4,828.94 and 1,138.88

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Solution

The fourth proportional to 3,219.10, 4,828.94 and 1,138.88 is: 1,708.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.10 : 4,828.94 = 1,138.88 : x
  2. Step 2: Convert to fraction form
    3,219.10/4,828.94 = 1,138.88/x
  3. Step 3: Cross multiply
    3,219.10x = 4,828.94 × 1,138.88
  4. Step 4: Simplify right side
    3,219.10x = 5,499,583.19
  5. Step 5: Solve for x
    x = 5,499,583.19/3,219.10
  6. Step 6: Final answer
    x = 1,708.42

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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.