Home / 7,112.93-10,664.79-2,955.80

Finding the Fourth Proportional to 7,112.93, 10,664.79 and 2,955.80

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Solution

The fourth proportional to 7,112.93, 10,664.79 and 2,955.80 is: 4,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.93 : 10,664.79 = 2,955.80 : x
  2. Step 2: Convert to fraction form
    7,112.93/10,664.79 = 2,955.80/x
  3. Step 3: Cross multiply
    7,112.93x = 10,664.79 × 2,955.80
  4. Step 4: Simplify right side
    7,112.93x = 31,522,932.96
  5. Step 5: Solve for x
    x = 31,522,932.96/7,112.93
  6. Step 6: Final answer
    x = 4,431.78

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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.