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Finding the Fourth Proportional to 1,898.55, 2,849.60 and 1,169.55

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Solution

The fourth proportional to 1,898.55, 2,849.60 and 1,169.55 is: 1,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.55 : 2,849.60 = 1,169.55 : x
  2. Step 2: Convert to fraction form
    1,898.55/2,849.60 = 1,169.55/x
  3. Step 3: Cross multiply
    1,898.55x = 2,849.60 × 1,169.55
  4. Step 4: Simplify right side
    1,898.55x = 3,332,749.68
  5. Step 5: Solve for x
    x = 3,332,749.68/1,898.55
  6. Step 6: Final answer
    x = 1,755.42

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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.