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Finding the Fourth Proportional to 1,745.12, 2,617.73 and 634.76

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Solution

The fourth proportional to 1,745.12, 2,617.73 and 634.76 is: 952.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.12 : 2,617.73 = 634.76 : x
  2. Step 2: Convert to fraction form
    1,745.12/2,617.73 = 634.76/x
  3. Step 3: Cross multiply
    1,745.12x = 2,617.73 × 634.76
  4. Step 4: Simplify right side
    1,745.12x = 1,661,630.29
  5. Step 5: Solve for x
    x = 1,661,630.29/1,745.12
  6. Step 6: Final answer
    x = 952.16

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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.