Home / 7,857.09-11,787.03-2,592.39

Finding the Fourth Proportional to 7,857.09, 11,787.03 and 2,592.39

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Solution

The fourth proportional to 7,857.09, 11,787.03 and 2,592.39 is: 3,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.09 : 11,787.03 = 2,592.39 : x
  2. Step 2: Convert to fraction form
    7,857.09/11,787.03 = 2,592.39/x
  3. Step 3: Cross multiply
    7,857.09x = 11,787.03 × 2,592.39
  4. Step 4: Simplify right side
    7,857.09x = 30,556,578.70
  5. Step 5: Solve for x
    x = 30,556,578.70/7,857.09
  6. Step 6: Final answer
    x = 3,889.05

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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.