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Finding the Fourth Proportional to 1,352.56, 2,029.26 and 622.12

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Solution

The fourth proportional to 1,352.56, 2,029.26 and 622.12 is: 933.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.56 : 2,029.26 = 622.12 : x
  2. Step 2: Convert to fraction form
    1,352.56/2,029.26 = 622.12/x
  3. Step 3: Cross multiply
    1,352.56x = 2,029.26 × 622.12
  4. Step 4: Simplify right side
    1,352.56x = 1,262,443.23
  5. Step 5: Solve for x
    x = 1,262,443.23/1,352.56
  6. Step 6: Final answer
    x = 933.37

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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.