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Finding the Fourth Proportional to 2,745.37, 4,118.01 and 665.36

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Solution

The fourth proportional to 2,745.37, 4,118.01 and 665.36 is: 998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.37 : 4,118.01 = 665.36 : x
  2. Step 2: Convert to fraction form
    2,745.37/4,118.01 = 665.36/x
  3. Step 3: Cross multiply
    2,745.37x = 4,118.01 × 665.36
  4. Step 4: Simplify right side
    2,745.37x = 2,739,959.13
  5. Step 5: Solve for x
    x = 2,739,959.13/2,745.37
  6. Step 6: Final answer
    x = 998.03

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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.