Home / 6,413.22-9,621.72-1,910.40

Finding the Fourth Proportional to 6,413.22, 9,621.72 and 1,910.40

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Solution

The fourth proportional to 6,413.22, 9,621.72 and 1,910.40 is: 2,866.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413.22 : 9,621.72 = 1,910.40 : x
  2. Step 2: Convert to fraction form
    6,413.22/9,621.72 = 1,910.40/x
  3. Step 3: Cross multiply
    6,413.22x = 9,621.72 × 1,910.40
  4. Step 4: Simplify right side
    6,413.22x = 18,381,333.89
  5. Step 5: Solve for x
    x = 18,381,333.89/6,413.22
  6. Step 6: Final answer
    x = 2,866.16

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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.