Home / 6,413.48-9,621.39-1,971.05

Finding the Fourth Proportional to 6,413.48, 9,621.39 and 1,971.05

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Solution

The fourth proportional to 6,413.48, 9,621.39 and 1,971.05 is: 2,956.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413.48 : 9,621.39 = 1,971.05 : x
  2. Step 2: Convert to fraction form
    6,413.48/9,621.39 = 1,971.05/x
  3. Step 3: Cross multiply
    6,413.48x = 9,621.39 × 1,971.05
  4. Step 4: Simplify right side
    6,413.48x = 18,964,240.76
  5. Step 5: Solve for x
    x = 18,964,240.76/6,413.48
  6. Step 6: Final answer
    x = 2,956.93

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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.