Home / 1,183.44-1,629.63-1,125.12

Finding the Fourth Proportional to 1,183.44, 1,629.63 and 1,125.12

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Solution

The fourth proportional to 1,183.44, 1,629.63 and 1,125.12 is: 1,549.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.44 : 1,629.63 = 1,125.12 : x
  2. Step 2: Convert to fraction form
    1,183.44/1,629.63 = 1,125.12/x
  3. Step 3: Cross multiply
    1,183.44x = 1,629.63 × 1,125.12
  4. Step 4: Simplify right side
    1,183.44x = 1,833,529.31
  5. Step 5: Solve for x
    x = 1,833,529.31/1,183.44
  6. Step 6: Final answer
    x = 1,549.32

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Half scale
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Double scale
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1.5x scale

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.