Home / 3,840.44-5,760.84-1,243.58

Finding the Fourth Proportional to 3,840.44, 5,760.84 and 1,243.58

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Solution

The fourth proportional to 3,840.44, 5,760.84 and 1,243.58 is: 1,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.44 : 5,760.84 = 1,243.58 : x
  2. Step 2: Convert to fraction form
    3,840.44/5,760.84 = 1,243.58/x
  3. Step 3: Cross multiply
    3,840.44x = 5,760.84 × 1,243.58
  4. Step 4: Simplify right side
    3,840.44x = 7,164,065.41
  5. Step 5: Solve for x
    x = 7,164,065.41/3,840.44
  6. Step 6: Final answer
    x = 1,865.43

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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.