Home / 7,876.94-11,812.38-2,610.36

Finding the Fourth Proportional to 7,876.94, 11,812.38 and 2,610.36

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Solution

The fourth proportional to 7,876.94, 11,812.38 and 2,610.36 is: 3,914.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.94 : 11,812.38 = 2,610.36 : x
  2. Step 2: Convert to fraction form
    7,876.94/11,812.38 = 2,610.36/x
  3. Step 3: Cross multiply
    7,876.94x = 11,812.38 × 2,610.36
  4. Step 4: Simplify right side
    7,876.94x = 30,834,564.26
  5. Step 5: Solve for x
    x = 30,834,564.26/7,876.94
  6. Step 6: Final answer
    x = 3,914.54

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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.