Home / 1,968.99-2,717.15-1,072.71

Finding the Fourth Proportional to 1,968.99, 2,717.15 and 1,072.71

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Solution

The fourth proportional to 1,968.99, 2,717.15 and 1,072.71 is: 1,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.99 : 2,717.15 = 1,072.71 : x
  2. Step 2: Convert to fraction form
    1,968.99/2,717.15 = 1,072.71/x
  3. Step 3: Cross multiply
    1,968.99x = 2,717.15 × 1,072.71
  4. Step 4: Simplify right side
    1,968.99x = 2,914,713.98
  5. Step 5: Solve for x
    x = 2,914,713.98/1,968.99
  6. Step 6: Final answer
    x = 1,480.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.