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Finding the Fourth Proportional to 6,682.68, 9,222.75 and 3,888

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Solution

The fourth proportional to 6,682.68, 9,222.75 and 3,888 is: 5,365.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,682.68 : 9,222.75 = 3,888 : x
  2. Step 2: Convert to fraction form
    6,682.68/9,222.75 = 3,888/x
  3. Step 3: Cross multiply
    6,682.68x = 9,222.75 × 3,888
  4. Step 4: Simplify right side
    6,682.68x = 35,858,052
  5. Step 5: Solve for x
    x = 35,858,052/6,682.68
  6. Step 6: Final answer
    x = 5,365.82

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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.