Home / 7,929.04-11,892.60-2,664.08

Finding the Fourth Proportional to 7,929.04, 11,892.60 and 2,664.08

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Solution

The fourth proportional to 7,929.04, 11,892.60 and 2,664.08 is: 3,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.04 : 11,892.60 = 2,664.08 : x
  2. Step 2: Convert to fraction form
    7,929.04/11,892.60 = 2,664.08/x
  3. Step 3: Cross multiply
    7,929.04x = 11,892.60 × 2,664.08
  4. Step 4: Simplify right side
    7,929.04x = 31,682,837.81
  5. Step 5: Solve for x
    x = 31,682,837.81/7,929.04
  6. Step 6: Final answer
    x = 3,995.80

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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.