Home / 7,620.36-11,430.66-2,942.52

Finding the Fourth Proportional to 7,620.36, 11,430.66 and 2,942.52

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Solution

The fourth proportional to 7,620.36, 11,430.66 and 2,942.52 is: 4,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.36 : 11,430.66 = 2,942.52 : x
  2. Step 2: Convert to fraction form
    7,620.36/11,430.66 = 2,942.52/x
  3. Step 3: Cross multiply
    7,620.36x = 11,430.66 × 2,942.52
  4. Step 4: Simplify right side
    7,620.36x = 33,634,945.66
  5. Step 5: Solve for x
    x = 33,634,945.66/7,620.36
  6. Step 6: Final answer
    x = 4,413.83

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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.