Home / 3,645.03-5,468.49-2,085.78

Finding the Fourth Proportional to 3,645.03, 5,468.49 and 2,085.78

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Solution

The fourth proportional to 3,645.03, 5,468.49 and 2,085.78 is: 3,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.03 : 5,468.49 = 2,085.78 : x
  2. Step 2: Convert to fraction form
    3,645.03/5,468.49 = 2,085.78/x
  3. Step 3: Cross multiply
    3,645.03x = 5,468.49 × 2,085.78
  4. Step 4: Simplify right side
    3,645.03x = 11,406,067.07
  5. Step 5: Solve for x
    x = 11,406,067.07/3,645.03
  6. Step 6: Final answer
    x = 3,129.21

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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.