Home / 5,413.78-8,114.13-2,636.29

Finding the Fourth Proportional to 5,413.78, 8,114.13 and 2,636.29

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Solution

The fourth proportional to 5,413.78, 8,114.13 and 2,636.29 is: 3,951.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.78 : 8,114.13 = 2,636.29 : x
  2. Step 2: Convert to fraction form
    5,413.78/8,114.13 = 2,636.29/x
  3. Step 3: Cross multiply
    5,413.78x = 8,114.13 × 2,636.29
  4. Step 4: Simplify right side
    5,413.78x = 21,391,199.78
  5. Step 5: Solve for x
    x = 21,391,199.78/5,413.78
  6. Step 6: Final answer
    x = 3,951.25

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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.