Home / 1,938.73-2,906.99-1,323.18

Finding the Fourth Proportional to 1,938.73, 2,906.99 and 1,323.18

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Solution

The fourth proportional to 1,938.73, 2,906.99 and 1,323.18 is: 1,984.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.73 : 2,906.99 = 1,323.18 : x
  2. Step 2: Convert to fraction form
    1,938.73/2,906.99 = 1,323.18/x
  3. Step 3: Cross multiply
    1,938.73x = 2,906.99 × 1,323.18
  4. Step 4: Simplify right side
    1,938.73x = 3,846,483.26
  5. Step 5: Solve for x
    x = 3,846,483.26/1,938.73
  6. Step 6: Final answer
    x = 1,984.02

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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.