Home / 5,438.26-7,502.79-3,198.75

Finding the Fourth Proportional to 5,438.26, 7,502.79 and 3,198.75

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Solution

The fourth proportional to 5,438.26, 7,502.79 and 3,198.75 is: 4,413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.26 : 7,502.79 = 3,198.75 : x
  2. Step 2: Convert to fraction form
    5,438.26/7,502.79 = 3,198.75/x
  3. Step 3: Cross multiply
    5,438.26x = 7,502.79 × 3,198.75
  4. Step 4: Simplify right side
    5,438.26x = 23,999,549.51
  5. Step 5: Solve for x
    x = 23,999,549.51/5,438.26
  6. Step 6: Final answer
    x = 4,413.09

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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.