Home / 7,066.80-9,751.75-3,923

Finding the Fourth Proportional to 7,066.80, 9,751.75 and 3,923

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Solution

The fourth proportional to 7,066.80, 9,751.75 and 3,923 is: 5,413.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,066.80 : 9,751.75 = 3,923 : x
  2. Step 2: Convert to fraction form
    7,066.80/9,751.75 = 3,923/x
  3. Step 3: Cross multiply
    7,066.80x = 9,751.75 × 3,923
  4. Step 4: Simplify right side
    7,066.80x = 38,256,115.25
  5. Step 5: Solve for x
    x = 38,256,115.25/7,066.80
  6. Step 6: Final answer
    x = 5,413.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.