Home / 5,268.72-7,269.80-3,172.98

Finding the Fourth Proportional to 5,268.72, 7,269.80 and 3,172.98

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Solution

The fourth proportional to 5,268.72, 7,269.80 and 3,172.98 is: 4,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.72 : 7,269.80 = 3,172.98 : x
  2. Step 2: Convert to fraction form
    5,268.72/7,269.80 = 3,172.98/x
  3. Step 3: Cross multiply
    5,268.72x = 7,269.80 × 3,172.98
  4. Step 4: Simplify right side
    5,268.72x = 23,066,930.00
  5. Step 5: Solve for x
    x = 23,066,930.00/5,268.72
  6. Step 6: Final answer
    x = 4,378.09

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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.