Home / 7,431.40-11,154.03-3,924

Finding the Fourth Proportional to 7,431.40, 11,154.03 and 3,924

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Solution

The fourth proportional to 7,431.40, 11,154.03 and 3,924 is: 5,889.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.40 : 11,154.03 = 3,924 : x
  2. Step 2: Convert to fraction form
    7,431.40/11,154.03 = 3,924/x
  3. Step 3: Cross multiply
    7,431.40x = 11,154.03 × 3,924
  4. Step 4: Simplify right side
    7,431.40x = 43,768,413.72
  5. Step 5: Solve for x
    x = 43,768,413.72/7,431.40
  6. Step 6: Final answer
    x = 5,889.66

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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.