Home / 1,968.15-2,955.52-1,229.48

Finding the Fourth Proportional to 1,968.15, 2,955.52 and 1,229.48

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Solution

The fourth proportional to 1,968.15, 2,955.52 and 1,229.48 is: 1,846.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.15 : 2,955.52 = 1,229.48 : x
  2. Step 2: Convert to fraction form
    1,968.15/2,955.52 = 1,229.48/x
  3. Step 3: Cross multiply
    1,968.15x = 2,955.52 × 1,229.48
  4. Step 4: Simplify right side
    1,968.15x = 3,633,757.04
  5. Step 5: Solve for x
    x = 3,633,757.04/1,968.15
  6. Step 6: Final answer
    x = 1,846.28

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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.