Home / 7,947.82-11,918.67-2,681.41

Finding the Fourth Proportional to 7,947.82, 11,918.67 and 2,681.41

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Solution

The fourth proportional to 7,947.82, 11,918.67 and 2,681.41 is: 4,021.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.82 : 11,918.67 = 2,681.41 : x
  2. Step 2: Convert to fraction form
    7,947.82/11,918.67 = 2,681.41/x
  3. Step 3: Cross multiply
    7,947.82x = 11,918.67 × 2,681.41
  4. Step 4: Simplify right side
    7,947.82x = 31,958,840.92
  5. Step 5: Solve for x
    x = 31,958,840.92/7,947.82
  6. Step 6: Final answer
    x = 4,021.08

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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.