Home / 1,603.80-2,401.38-1,163.79

Finding the Fourth Proportional to 1,603.80, 2,401.38 and 1,163.79

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Solution

The fourth proportional to 1,603.80, 2,401.38 and 1,163.79 is: 1,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.80 : 2,401.38 = 1,163.79 : x
  2. Step 2: Convert to fraction form
    1,603.80/2,401.38 = 1,163.79/x
  3. Step 3: Cross multiply
    1,603.80x = 2,401.38 × 1,163.79
  4. Step 4: Simplify right side
    1,603.80x = 2,794,702.03
  5. Step 5: Solve for x
    x = 2,794,702.03/1,603.80
  6. Step 6: Final answer
    x = 1,742.55

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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.