Home / 5,413.36-8,120.26-1,715.50

Finding the Fourth Proportional to 5,413.36, 8,120.26 and 1,715.50

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Solution

The fourth proportional to 5,413.36, 8,120.26 and 1,715.50 is: 2,573.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.36 : 8,120.26 = 1,715.50 : x
  2. Step 2: Convert to fraction form
    5,413.36/8,120.26 = 1,715.50/x
  3. Step 3: Cross multiply
    5,413.36x = 8,120.26 × 1,715.50
  4. Step 4: Simplify right side
    5,413.36x = 13,930,343.58
  5. Step 5: Solve for x
    x = 13,930,343.58/5,413.36
  6. Step 6: Final answer
    x = 2,573.33

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1.5x scale

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.