Home / 1,853.21-2,556.45-1,255.73

Finding the Fourth Proportional to 1,853.21, 2,556.45 and 1,255.73

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Solution

The fourth proportional to 1,853.21, 2,556.45 and 1,255.73 is: 1,732.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.21 : 2,556.45 = 1,255.73 : x
  2. Step 2: Convert to fraction form
    1,853.21/2,556.45 = 1,255.73/x
  3. Step 3: Cross multiply
    1,853.21x = 2,556.45 × 1,255.73
  4. Step 4: Simplify right side
    1,853.21x = 3,210,198.18
  5. Step 5: Solve for x
    x = 3,210,198.18/1,853.21
  6. Step 6: Final answer
    x = 1,732.24

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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.