Home / 5,111.37-7,667.06-1,413.60

Finding the Fourth Proportional to 5,111.37, 7,667.06 and 1,413.60

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Solution

The fourth proportional to 5,111.37, 7,667.06 and 1,413.60 is: 2,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.37 : 7,667.06 = 1,413.60 : x
  2. Step 2: Convert to fraction form
    5,111.37/7,667.06 = 1,413.60/x
  3. Step 3: Cross multiply
    5,111.37x = 7,667.06 × 1,413.60
  4. Step 4: Simplify right side
    5,111.37x = 10,838,172.27
  5. Step 5: Solve for x
    x = 10,838,172.27/5,111.37
  6. Step 6: Final answer
    x = 2,120.40

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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.