Home / 7,865.94-11,789.19-3,971.46

Finding the Fourth Proportional to 7,865.94, 11,789.19 and 3,971.46

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Solution

The fourth proportional to 7,865.94, 11,789.19 and 3,971.46 is: 5,952.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.94 : 11,789.19 = 3,971.46 : x
  2. Step 2: Convert to fraction form
    7,865.94/11,789.19 = 3,971.46/x
  3. Step 3: Cross multiply
    7,865.94x = 11,789.19 × 3,971.46
  4. Step 4: Simplify right side
    7,865.94x = 46,820,296.52
  5. Step 5: Solve for x
    x = 46,820,296.52/7,865.94
  6. Step 6: Final answer
    x = 5,952.28

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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.