Home / 3,878.83-5,818.29-1,413.46

Finding the Fourth Proportional to 3,878.83, 5,818.29 and 1,413.46

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Solution

The fourth proportional to 3,878.83, 5,818.29 and 1,413.46 is: 2,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.83 : 5,818.29 = 1,413.46 : x
  2. Step 2: Convert to fraction form
    3,878.83/5,818.29 = 1,413.46/x
  3. Step 3: Cross multiply
    3,878.83x = 5,818.29 × 1,413.46
  4. Step 4: Simplify right side
    3,878.83x = 8,223,920.18
  5. Step 5: Solve for x
    x = 8,223,920.18/3,878.83
  6. Step 6: Final answer
    x = 2,120.21

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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.