Home / 1,391.73-2,084.36-1,173.03

Finding the Fourth Proportional to 1,391.73, 2,084.36 and 1,173.03

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Solution

The fourth proportional to 1,391.73, 2,084.36 and 1,173.03 is: 1,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391.73 : 2,084.36 = 1,173.03 : x
  2. Step 2: Convert to fraction form
    1,391.73/2,084.36 = 1,173.03/x
  3. Step 3: Cross multiply
    1,391.73x = 2,084.36 × 1,173.03
  4. Step 4: Simplify right side
    1,391.73x = 2,445,010.95
  5. Step 5: Solve for x
    x = 2,445,010.95/1,391.73
  6. Step 6: Final answer
    x = 1,756.81

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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.