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Finding the Fourth Proportional to 1,745.21, 2,617.07 and 704.93

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Solution

The fourth proportional to 1,745.21, 2,617.07 and 704.93 is: 1,057.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.21 : 2,617.07 = 704.93 : x
  2. Step 2: Convert to fraction form
    1,745.21/2,617.07 = 704.93/x
  3. Step 3: Cross multiply
    1,745.21x = 2,617.07 × 704.93
  4. Step 4: Simplify right side
    1,745.21x = 1,844,851.16
  5. Step 5: Solve for x
    x = 1,844,851.16/1,745.21
  6. Step 6: Final answer
    x = 1,057.09

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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.