Home / 1,353.15-2,029.64-379.26

Finding the Fourth Proportional to 1,353.15, 2,029.64 and 379.26

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Solution

The fourth proportional to 1,353.15, 2,029.64 and 379.26 is: 568.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.15 : 2,029.64 = 379.26 : x
  2. Step 2: Convert to fraction form
    1,353.15/2,029.64 = 379.26/x
  3. Step 3: Cross multiply
    1,353.15x = 2,029.64 × 379.26
  4. Step 4: Simplify right side
    1,353.15x = 769,759.37
  5. Step 5: Solve for x
    x = 769,759.37/1,353.15
  6. Step 6: Final answer
    x = 568.86

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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.