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Finding the Fourth Proportional to 1,995, 2,752.95 and 1,110.79

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Solution

The fourth proportional to 1,995, 2,752.95 and 1,110.79 is: 1,532.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995 : 2,752.95 = 1,110.79 : x
  2. Step 2: Convert to fraction form
    1,995/2,752.95 = 1,110.79/x
  3. Step 3: Cross multiply
    1,995x = 2,752.95 × 1,110.79
  4. Step 4: Simplify right side
    1,995x = 3,057,949.33
  5. Step 5: Solve for x
    x = 3,057,949.33/1,995
  6. Step 6: Final answer
    x = 1,532.81

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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.