Home / 5,413.72-8,121.78-1,717.08

Finding the Fourth Proportional to 5,413.72, 8,121.78 and 1,717.08

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Solution

The fourth proportional to 5,413.72, 8,121.78 and 1,717.08 is: 2,576.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.72 : 8,121.78 = 1,717.08 : x
  2. Step 2: Convert to fraction form
    5,413.72/8,121.78 = 1,717.08/x
  3. Step 3: Cross multiply
    5,413.72x = 8,121.78 × 1,717.08
  4. Step 4: Simplify right side
    5,413.72x = 13,945,746.00
  5. Step 5: Solve for x
    x = 13,945,746.00/5,413.72
  6. Step 6: Final answer
    x = 2,576.00

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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.