Home / 1,353.24-2,029.86-379.41

Finding the Fourth Proportional to 1,353.24, 2,029.86 and 379.41

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Solution

The fourth proportional to 1,353.24, 2,029.86 and 379.41 is: 569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.24 : 2,029.86 = 379.41 : x
  2. Step 2: Convert to fraction form
    1,353.24/2,029.86 = 379.41/x
  3. Step 3: Cross multiply
    1,353.24x = 2,029.86 × 379.41
  4. Step 4: Simplify right side
    1,353.24x = 770,149.18
  5. Step 5: Solve for x
    x = 770,149.18/1,353.24
  6. Step 6: Final answer
    x = 569.12

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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.