Home / 7,110.57-9,812.64-3,923.97

Finding the Fourth Proportional to 7,110.57, 9,812.64 and 3,923.97

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Solution

The fourth proportional to 7,110.57, 9,812.64 and 3,923.97 is: 5,415.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.57 : 9,812.64 = 3,923.97 : x
  2. Step 2: Convert to fraction form
    7,110.57/9,812.64 = 3,923.97/x
  3. Step 3: Cross multiply
    7,110.57x = 9,812.64 × 3,923.97
  4. Step 4: Simplify right side
    7,110.57x = 38,504,504.98
  5. Step 5: Solve for x
    x = 38,504,504.98/7,110.57
  6. Step 6: Final answer
    x = 5,415.11

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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.