Home / 5,231.06-7,847.75-1,720.93

Finding the Fourth Proportional to 5,231.06, 7,847.75 and 1,720.93

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Solution

The fourth proportional to 5,231.06, 7,847.75 and 1,720.93 is: 2,581.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.06 : 7,847.75 = 1,720.93 : x
  2. Step 2: Convert to fraction form
    5,231.06/7,847.75 = 1,720.93/x
  3. Step 3: Cross multiply
    5,231.06x = 7,847.75 × 1,720.93
  4. Step 4: Simplify right side
    5,231.06x = 13,505,413.68
  5. Step 5: Solve for x
    x = 13,505,413.68/5,231.06
  6. Step 6: Final answer
    x = 2,581.77

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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.