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Finding the Fourth Proportional to 1,083.12, 1,623.96 and 352.44

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Solution

The fourth proportional to 1,083.12, 1,623.96 and 352.44 is: 528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083.12 : 1,623.96 = 352.44 : x
  2. Step 2: Convert to fraction form
    1,083.12/1,623.96 = 352.44/x
  3. Step 3: Cross multiply
    1,083.12x = 1,623.96 × 352.44
  4. Step 4: Simplify right side
    1,083.12x = 572,348.46
  5. Step 5: Solve for x
    x = 572,348.46/1,083.12
  6. Step 6: Final answer
    x = 528.43

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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.