Home / 2,178.68-3,006.60-1,183.94

Finding the Fourth Proportional to 2,178.68, 3,006.60 and 1,183.94

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Solution

The fourth proportional to 2,178.68, 3,006.60 and 1,183.94 is: 1,633.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.68 : 3,006.60 = 1,183.94 : x
  2. Step 2: Convert to fraction form
    2,178.68/3,006.60 = 1,183.94/x
  3. Step 3: Cross multiply
    2,178.68x = 3,006.60 × 1,183.94
  4. Step 4: Simplify right side
    2,178.68x = 3,559,630.25
  5. Step 5: Solve for x
    x = 3,559,630.25/2,178.68
  6. Step 6: Final answer
    x = 1,633.85

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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.