Home / 1,273.95-1,759.33-1,136.43

Finding the Fourth Proportional to 1,273.95, 1,759.33 and 1,136.43

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Solution

The fourth proportional to 1,273.95, 1,759.33 and 1,136.43 is: 1,569.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.95 : 1,759.33 = 1,136.43 : x
  2. Step 2: Convert to fraction form
    1,273.95/1,759.33 = 1,136.43/x
  3. Step 3: Cross multiply
    1,273.95x = 1,759.33 × 1,136.43
  4. Step 4: Simplify right side
    1,273.95x = 1,999,355.39
  5. Step 5: Solve for x
    x = 1,999,355.39/1,273.95
  6. Step 6: Final answer
    x = 1,569.41

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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.