Home / 3,768.21-5,653.42-1,687.73

Finding the Fourth Proportional to 3,768.21, 5,653.42 and 1,687.73

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Solution

The fourth proportional to 3,768.21, 5,653.42 and 1,687.73 is: 2,532.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.21 : 5,653.42 = 1,687.73 : x
  2. Step 2: Convert to fraction form
    3,768.21/5,653.42 = 1,687.73/x
  3. Step 3: Cross multiply
    3,768.21x = 5,653.42 × 1,687.73
  4. Step 4: Simplify right side
    3,768.21x = 9,541,434.70
  5. Step 5: Solve for x
    x = 9,541,434.70/3,768.21
  6. Step 6: Final answer
    x = 2,532.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.