Home / 7,839.09-11,758.64-2,644.97

Finding the Fourth Proportional to 7,839.09, 11,758.64 and 2,644.97

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Solution

The fourth proportional to 7,839.09, 11,758.64 and 2,644.97 is: 3,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.09 : 11,758.64 = 2,644.97 : x
  2. Step 2: Convert to fraction form
    7,839.09/11,758.64 = 2,644.97/x
  3. Step 3: Cross multiply
    7,839.09x = 11,758.64 × 2,644.97
  4. Step 4: Simplify right side
    7,839.09x = 31,101,178.02
  5. Step 5: Solve for x
    x = 31,101,178.02/7,839.09
  6. Step 6: Final answer
    x = 3,967.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.