Home / 2,783.22-4,174.90-1,138.62

Finding the Fourth Proportional to 2,783.22, 4,174.90 and 1,138.62

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Solution

The fourth proportional to 2,783.22, 4,174.90 and 1,138.62 is: 1,707.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.22 : 4,174.90 = 1,138.62 : x
  2. Step 2: Convert to fraction form
    2,783.22/4,174.90 = 1,138.62/x
  3. Step 3: Cross multiply
    2,783.22x = 4,174.90 × 1,138.62
  4. Step 4: Simplify right side
    2,783.22x = 4,753,624.64
  5. Step 5: Solve for x
    x = 4,753,624.64/2,783.22
  6. Step 6: Final answer
    x = 1,707.96

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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.