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Finding the Fourth Proportional to 1,745.31, 2,617.05 and 922.92

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Solution

The fourth proportional to 1,745.31, 2,617.05 and 922.92 is: 1,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.31 : 2,617.05 = 922.92 : x
  2. Step 2: Convert to fraction form
    1,745.31/2,617.05 = 922.92/x
  3. Step 3: Cross multiply
    1,745.31x = 2,617.05 × 922.92
  4. Step 4: Simplify right side
    1,745.31x = 2,415,327.79
  5. Step 5: Solve for x
    x = 2,415,327.79/1,745.31
  6. Step 6: Final answer
    x = 1,383.90

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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.