Home / 1,923.24-2,653.12-1,205.30

Finding the Fourth Proportional to 1,923.24, 2,653.12 and 1,205.30

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Solution

The fourth proportional to 1,923.24, 2,653.12 and 1,205.30 is: 1,662.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.24 : 2,653.12 = 1,205.30 : x
  2. Step 2: Convert to fraction form
    1,923.24/2,653.12 = 1,205.30/x
  3. Step 3: Cross multiply
    1,923.24x = 2,653.12 × 1,205.30
  4. Step 4: Simplify right side
    1,923.24x = 3,197,789.26
  5. Step 5: Solve for x
    x = 3,197,789.26/1,923.24
  6. Step 6: Final answer
    x = 1,662.71

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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.