Home / 5,268.75-7,270.88-3,173.28

Finding the Fourth Proportional to 5,268.75, 7,270.88 and 3,173.28

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Solution

The fourth proportional to 5,268.75, 7,270.88 and 3,173.28 is: 4,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.75 : 7,270.88 = 3,173.28 : x
  2. Step 2: Convert to fraction form
    5,268.75/7,270.88 = 3,173.28/x
  3. Step 3: Cross multiply
    5,268.75x = 7,270.88 × 3,173.28
  4. Step 4: Simplify right side
    5,268.75x = 23,072,522.22
  5. Step 5: Solve for x
    x = 23,072,522.22/5,268.75
  6. Step 6: Final answer
    x = 4,379.13

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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.