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Finding the Fourth Proportional to 1,219.98, 1,829.37 and 733.98

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Solution

The fourth proportional to 1,219.98, 1,829.37 and 733.98 is: 1,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.98 : 1,829.37 = 733.98 : x
  2. Step 2: Convert to fraction form
    1,219.98/1,829.37 = 733.98/x
  3. Step 3: Cross multiply
    1,219.98x = 1,829.37 × 733.98
  4. Step 4: Simplify right side
    1,219.98x = 1,342,720.99
  5. Step 5: Solve for x
    x = 1,342,720.99/1,219.98
  6. Step 6: Final answer
    x = 1,100.61

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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.