Home / 6,939.90-10,413.40-3,822.36

Finding the Fourth Proportional to 6,939.90, 10,413.40 and 3,822.36

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Solution

The fourth proportional to 6,939.90, 10,413.40 and 3,822.36 is: 5,735.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.90 : 10,413.40 = 3,822.36 : x
  2. Step 2: Convert to fraction form
    6,939.90/10,413.40 = 3,822.36/x
  3. Step 3: Cross multiply
    6,939.90x = 10,413.40 × 3,822.36
  4. Step 4: Simplify right side
    6,939.90x = 39,803,763.62
  5. Step 5: Solve for x
    x = 39,803,763.62/6,939.90
  6. Step 6: Final answer
    x = 5,735.50

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1.5x scale

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.