Home / 1,183.48-1,764.87-1,155.54

Finding the Fourth Proportional to 1,183.48, 1,764.87 and 1,155.54

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Solution

The fourth proportional to 1,183.48, 1,764.87 and 1,155.54 is: 1,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.48 : 1,764.87 = 1,155.54 : x
  2. Step 2: Convert to fraction form
    1,183.48/1,764.87 = 1,155.54/x
  3. Step 3: Cross multiply
    1,183.48x = 1,764.87 × 1,155.54
  4. Step 4: Simplify right side
    1,183.48x = 2,039,377.88
  5. Step 5: Solve for x
    x = 2,039,377.88/1,183.48
  6. Step 6: Final answer
    x = 1,723.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.