Home / 3,122.22-4,307.31-1,879.50

Finding the Fourth Proportional to 3,122.22, 4,307.31 and 1,879.50

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Solution

The fourth proportional to 3,122.22, 4,307.31 and 1,879.50 is: 2,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.22 : 4,307.31 = 1,879.50 : x
  2. Step 2: Convert to fraction form
    3,122.22/4,307.31 = 1,879.50/x
  3. Step 3: Cross multiply
    3,122.22x = 4,307.31 × 1,879.50
  4. Step 4: Simplify right side
    3,122.22x = 8,095,589.15
  5. Step 5: Solve for x
    x = 8,095,589.15/3,122.22
  6. Step 6: Final answer
    x = 2,592.90

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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.