Home / 7,929.34-11,889.39-2,999.36

Finding the Fourth Proportional to 7,929.34, 11,889.39 and 2,999.36

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Solution

The fourth proportional to 7,929.34, 11,889.39 and 2,999.36 is: 4,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.34 : 11,889.39 = 2,999.36 : x
  2. Step 2: Convert to fraction form
    7,929.34/11,889.39 = 2,999.36/x
  3. Step 3: Cross multiply
    7,929.34x = 11,889.39 × 2,999.36
  4. Step 4: Simplify right side
    7,929.34x = 35,660,601.76
  5. Step 5: Solve for x
    x = 35,660,601.76/7,929.34
  6. Step 6: Final answer
    x = 4,497.30

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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.