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Finding the Fourth Proportional to 1,094.03, 1,640.44 and 363.21

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Solution

The fourth proportional to 1,094.03, 1,640.44 and 363.21 is: 544.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.03 : 1,640.44 = 363.21 : x
  2. Step 2: Convert to fraction form
    1,094.03/1,640.44 = 363.21/x
  3. Step 3: Cross multiply
    1,094.03x = 1,640.44 × 363.21
  4. Step 4: Simplify right side
    1,094.03x = 595,824.67
  5. Step 5: Solve for x
    x = 595,824.67/1,094.03
  6. Step 6: Final answer
    x = 544.61

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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.