Home / 1,173.57-1,618.25-1,161.73

Finding the Fourth Proportional to 1,173.57, 1,618.25 and 1,161.73

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Solution

The fourth proportional to 1,173.57, 1,618.25 and 1,161.73 is: 1,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.57 : 1,618.25 = 1,161.73 : x
  2. Step 2: Convert to fraction form
    1,173.57/1,618.25 = 1,161.73/x
  3. Step 3: Cross multiply
    1,173.57x = 1,618.25 × 1,161.73
  4. Step 4: Simplify right side
    1,173.57x = 1,879,956.68
  5. Step 5: Solve for x
    x = 1,879,956.68/1,173.57
  6. Step 6: Final answer
    x = 1,601.91

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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.