Home / 5,413.50-8,078.36-4,830.30

Finding the Fourth Proportional to 5,413.50, 8,078.36 and 4,830.30

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Solution

The fourth proportional to 5,413.50, 8,078.36 and 4,830.30 is: 7,208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.50 : 8,078.36 = 4,830.30 : x
  2. Step 2: Convert to fraction form
    5,413.50/8,078.36 = 4,830.30/x
  3. Step 3: Cross multiply
    5,413.50x = 8,078.36 × 4,830.30
  4. Step 4: Simplify right side
    5,413.50x = 39,020,878.16
  5. Step 5: Solve for x
    x = 39,020,878.16/5,413.50
  6. Step 6: Final answer
    x = 7,208.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.