Home / 1,194.12-1,638.18-1,119.60

Finding the Fourth Proportional to 1,194.12, 1,638.18 and 1,119.60

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Solution

The fourth proportional to 1,194.12, 1,638.18 and 1,119.60 is: 1,535.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.12 : 1,638.18 = 1,119.60 : x
  2. Step 2: Convert to fraction form
    1,194.12/1,638.18 = 1,119.60/x
  3. Step 3: Cross multiply
    1,194.12x = 1,638.18 × 1,119.60
  4. Step 4: Simplify right side
    1,194.12x = 1,834,106.33
  5. Step 5: Solve for x
    x = 1,834,106.33/1,194.12
  6. Step 6: Final answer
    x = 1,535.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.