Home / 4,876.20-7,315.50-1,413.80

Finding the Fourth Proportional to 4,876.20, 7,315.50 and 1,413.80

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Solution

The fourth proportional to 4,876.20, 7,315.50 and 1,413.80 is: 2,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.20 : 7,315.50 = 1,413.80 : x
  2. Step 2: Convert to fraction form
    4,876.20/7,315.50 = 1,413.80/x
  3. Step 3: Cross multiply
    4,876.20x = 7,315.50 × 1,413.80
  4. Step 4: Simplify right side
    4,876.20x = 10,342,653.90
  5. Step 5: Solve for x
    x = 10,342,653.90/4,876.20
  6. Step 6: Final answer
    x = 2,121.05

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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.