Home / 4,942.58-7,415.40-2,021.12

Finding the Fourth Proportional to 4,942.58, 7,415.40 and 2,021.12

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Solution

The fourth proportional to 4,942.58, 7,415.40 and 2,021.12 is: 3,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.58 : 7,415.40 = 2,021.12 : x
  2. Step 2: Convert to fraction form
    4,942.58/7,415.40 = 2,021.12/x
  3. Step 3: Cross multiply
    4,942.58x = 7,415.40 × 2,021.12
  4. Step 4: Simplify right side
    4,942.58x = 14,987,413.25
  5. Step 5: Solve for x
    x = 14,987,413.25/4,942.58
  6. Step 6: Final answer
    x = 3,032.31

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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.