Home / 2,183.06-3,012.53-1,188.28

Finding the Fourth Proportional to 2,183.06, 3,012.53 and 1,188.28

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Solution

The fourth proportional to 2,183.06, 3,012.53 and 1,188.28 is: 1,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.06 : 3,012.53 = 1,188.28 : x
  2. Step 2: Convert to fraction form
    2,183.06/3,012.53 = 1,188.28/x
  3. Step 3: Cross multiply
    2,183.06x = 3,012.53 × 1,188.28
  4. Step 4: Simplify right side
    2,183.06x = 3,579,715.68
  5. Step 5: Solve for x
    x = 3,579,715.68/2,183.06
  6. Step 6: Final answer
    x = 1,639.77

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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.