Home / 1,288.44-1,779.57-1,183.14

Finding the Fourth Proportional to 1,288.44, 1,779.57 and 1,183.14

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Solution

The fourth proportional to 1,288.44, 1,779.57 and 1,183.14 is: 1,634.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288.44 : 1,779.57 = 1,183.14 : x
  2. Step 2: Convert to fraction form
    1,288.44/1,779.57 = 1,183.14/x
  3. Step 3: Cross multiply
    1,288.44x = 1,779.57 × 1,183.14
  4. Step 4: Simplify right side
    1,288.44x = 2,105,480.45
  5. Step 5: Solve for x
    x = 2,105,480.45/1,288.44
  6. Step 6: Final answer
    x = 1,634.13

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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.