Home / 1,352.44-2,028.35-378.61

Finding the Fourth Proportional to 1,352.44, 2,028.35 and 378.61

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Solution

The fourth proportional to 1,352.44, 2,028.35 and 378.61 is: 567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.44 : 2,028.35 = 378.61 : x
  2. Step 2: Convert to fraction form
    1,352.44/2,028.35 = 378.61/x
  3. Step 3: Cross multiply
    1,352.44x = 2,028.35 × 378.61
  4. Step 4: Simplify right side
    1,352.44x = 767,953.59
  5. Step 5: Solve for x
    x = 767,953.59/1,352.44
  6. Step 6: Final answer
    x = 567.83

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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.