Home / 2,177.85-3,005.43-1,183.12

Finding the Fourth Proportional to 2,177.85, 3,005.43 and 1,183.12

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Solution

The fourth proportional to 2,177.85, 3,005.43 and 1,183.12 is: 1,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.85 : 3,005.43 = 1,183.12 : x
  2. Step 2: Convert to fraction form
    2,177.85/3,005.43 = 1,183.12/x
  3. Step 3: Cross multiply
    2,177.85x = 3,005.43 × 1,183.12
  4. Step 4: Simplify right side
    2,177.85x = 3,555,784.34
  5. Step 5: Solve for x
    x = 3,555,784.34/2,177.85
  6. Step 6: Final answer
    x = 1,632.70

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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.