Home / 7,929.96-11,897.34-2,664.36

Finding the Fourth Proportional to 7,929.96, 11,897.34 and 2,664.36

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Solution

The fourth proportional to 7,929.96, 11,897.34 and 2,664.36 is: 3,997.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.96 : 11,897.34 = 2,664.36 : x
  2. Step 2: Convert to fraction form
    7,929.96/11,897.34 = 2,664.36/x
  3. Step 3: Cross multiply
    7,929.96x = 11,897.34 × 2,664.36
  4. Step 4: Simplify right side
    7,929.96x = 31,698,796.80
  5. Step 5: Solve for x
    x = 31,698,796.80/7,929.96
  6. Step 6: Final answer
    x = 3,997.35

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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.