Home / 1,418.79-1,954.24-1,194.45

Finding the Fourth Proportional to 1,418.79, 1,954.24 and 1,194.45

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Solution

The fourth proportional to 1,418.79, 1,954.24 and 1,194.45 is: 1,645.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.79 : 1,954.24 = 1,194.45 : x
  2. Step 2: Convert to fraction form
    1,418.79/1,954.24 = 1,194.45/x
  3. Step 3: Cross multiply
    1,418.79x = 1,954.24 × 1,194.45
  4. Step 4: Simplify right side
    1,418.79x = 2,334,241.97
  5. Step 5: Solve for x
    x = 2,334,241.97/1,418.79
  6. Step 6: Final answer
    x = 1,645.23

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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.