Home / 3,219.55-4,828.92-1,138.96

Finding the Fourth Proportional to 3,219.55, 4,828.92 and 1,138.96

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Solution

The fourth proportional to 3,219.55, 4,828.92 and 1,138.96 is: 1,708.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.55 : 4,828.92 = 1,138.96 : x
  2. Step 2: Convert to fraction form
    3,219.55/4,828.92 = 1,138.96/x
  3. Step 3: Cross multiply
    3,219.55x = 4,828.92 × 1,138.96
  4. Step 4: Simplify right side
    3,219.55x = 5,499,948.49
  5. Step 5: Solve for x
    x = 5,499,948.49/3,219.55
  6. Step 6: Final answer
    x = 1,708.30

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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.