Home / 4,187.72-6,281.60-1,413.65

Finding the Fourth Proportional to 4,187.72, 6,281.60 and 1,413.65

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Solution

The fourth proportional to 4,187.72, 6,281.60 and 1,413.65 is: 2,120.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.72 : 6,281.60 = 1,413.65 : x
  2. Step 2: Convert to fraction form
    4,187.72/6,281.60 = 1,413.65/x
  3. Step 3: Cross multiply
    4,187.72x = 6,281.60 × 1,413.65
  4. Step 4: Simplify right side
    4,187.72x = 8,879,992.48
  5. Step 5: Solve for x
    x = 8,879,992.48/4,187.72
  6. Step 6: Final answer
    x = 2,120.48

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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.