Home / 2,057.80-2,839.78-1,173.64

Finding the Fourth Proportional to 2,057.80, 2,839.78 and 1,173.64

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Solution

The fourth proportional to 2,057.80, 2,839.78 and 1,173.64 is: 1,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.80 : 2,839.78 = 1,173.64 : x
  2. Step 2: Convert to fraction form
    2,057.80/2,839.78 = 1,173.64/x
  3. Step 3: Cross multiply
    2,057.80x = 2,839.78 × 1,173.64
  4. Step 4: Simplify right side
    2,057.80x = 3,332,879.40
  5. Step 5: Solve for x
    x = 3,332,879.40/2,057.80
  6. Step 6: Final answer
    x = 1,619.63

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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.