Home / 1,949.81-2,690.79-1,110.54

Finding the Fourth Proportional to 1,949.81, 2,690.79 and 1,110.54

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Solution

The fourth proportional to 1,949.81, 2,690.79 and 1,110.54 is: 1,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.81 : 2,690.79 = 1,110.54 : x
  2. Step 2: Convert to fraction form
    1,949.81/2,690.79 = 1,110.54/x
  3. Step 3: Cross multiply
    1,949.81x = 2,690.79 × 1,110.54
  4. Step 4: Simplify right side
    1,949.81x = 2,988,235.85
  5. Step 5: Solve for x
    x = 2,988,235.85/1,949.81
  6. Step 6: Final answer
    x = 1,532.58

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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.