Home / 2,782.20-4,173.22-702.27

Finding the Fourth Proportional to 2,782.20, 4,173.22 and 702.27

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Solution

The fourth proportional to 2,782.20, 4,173.22 and 702.27 is: 1,053.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.20 : 4,173.22 = 702.27 : x
  2. Step 2: Convert to fraction form
    2,782.20/4,173.22 = 702.27/x
  3. Step 3: Cross multiply
    2,782.20x = 4,173.22 × 702.27
  4. Step 4: Simplify right side
    2,782.20x = 2,930,728.09
  5. Step 5: Solve for x
    x = 2,930,728.09/2,782.20
  6. Step 6: Final answer
    x = 1,053.39

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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.