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Finding the Fourth Proportional to 2,936.28, 4,404.42 and 745.02

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Solution

The fourth proportional to 2,936.28, 4,404.42 and 745.02 is: 1,117.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.28 : 4,404.42 = 745.02 : x
  2. Step 2: Convert to fraction form
    2,936.28/4,404.42 = 745.02/x
  3. Step 3: Cross multiply
    2,936.28x = 4,404.42 × 745.02
  4. Step 4: Simplify right side
    2,936.28x = 3,281,380.99
  5. Step 5: Solve for x
    x = 3,281,380.99/2,936.28
  6. Step 6: Final answer
    x = 1,117.53

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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.