Home / 1,968.95-2,717.21-1,072.71

Finding the Fourth Proportional to 1,968.95, 2,717.21 and 1,072.71

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Solution

The fourth proportional to 1,968.95, 2,717.21 and 1,072.71 is: 1,480.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.95 : 2,717.21 = 1,072.71 : x
  2. Step 2: Convert to fraction form
    1,968.95/2,717.21 = 1,072.71/x
  3. Step 3: Cross multiply
    1,968.95x = 2,717.21 × 1,072.71
  4. Step 4: Simplify right side
    1,968.95x = 2,914,772.98
  5. Step 5: Solve for x
    x = 2,914,772.98/1,968.95
  6. Step 6: Final answer
    x = 1,480.37

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1.5x scale

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.