Home / 7,112.43-10,664.08-2,955.31

Finding the Fourth Proportional to 7,112.43, 10,664.08 and 2,955.31

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Solution

The fourth proportional to 7,112.43, 10,664.08 and 2,955.31 is: 4,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.43 : 10,664.08 = 2,955.31 : x
  2. Step 2: Convert to fraction form
    7,112.43/10,664.08 = 2,955.31/x
  3. Step 3: Cross multiply
    7,112.43x = 10,664.08 × 2,955.31
  4. Step 4: Simplify right side
    7,112.43x = 31,515,662.26
  5. Step 5: Solve for x
    x = 31,515,662.26/7,112.43
  6. Step 6: Final answer
    x = 4,431.07

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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.