Home / 2,163.90-3,243.80-702.03

Finding the Fourth Proportional to 2,163.90, 3,243.80 and 702.03

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Solution

The fourth proportional to 2,163.90, 3,243.80 and 702.03 is: 1,052.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.90 : 3,243.80 = 702.03 : x
  2. Step 2: Convert to fraction form
    2,163.90/3,243.80 = 702.03/x
  3. Step 3: Cross multiply
    2,163.90x = 3,243.80 × 702.03
  4. Step 4: Simplify right side
    2,163.90x = 2,277,241.40
  5. Step 5: Solve for x
    x = 2,277,241.40/2,163.90
  6. Step 6: Final answer
    x = 1,052.38

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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.