Home / 1,149.12-1,723.44-379.44

Finding the Fourth Proportional to 1,149.12, 1,723.44 and 379.44

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Solution

The fourth proportional to 1,149.12, 1,723.44 and 379.44 is: 569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.12 : 1,723.44 = 379.44 : x
  2. Step 2: Convert to fraction form
    1,149.12/1,723.44 = 379.44/x
  3. Step 3: Cross multiply
    1,149.12x = 1,723.44 × 379.44
  4. Step 4: Simplify right side
    1,149.12x = 653,942.07
  5. Step 5: Solve for x
    x = 653,942.07/1,149.12
  6. Step 6: Final answer
    x = 569.08

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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.