Home / 2,161.98-2,982.44-1,265.14

Finding the Fourth Proportional to 2,161.98, 2,982.44 and 1,265.14

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Solution

The fourth proportional to 2,161.98, 2,982.44 and 1,265.14 is: 1,745.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.98 : 2,982.44 = 1,265.14 : x
  2. Step 2: Convert to fraction form
    2,161.98/2,982.44 = 1,265.14/x
  3. Step 3: Cross multiply
    2,161.98x = 2,982.44 × 1,265.14
  4. Step 4: Simplify right side
    2,161.98x = 3,773,203.92
  5. Step 5: Solve for x
    x = 3,773,203.92/2,161.98
  6. Step 6: Final answer
    x = 1,745.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.