Home / 2,206.36-3,309.55-745.52

Finding the Fourth Proportional to 2,206.36, 3,309.55 and 745.52

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Solution

The fourth proportional to 2,206.36, 3,309.55 and 745.52 is: 1,118.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.36 : 3,309.55 = 745.52 : x
  2. Step 2: Convert to fraction form
    2,206.36/3,309.55 = 745.52/x
  3. Step 3: Cross multiply
    2,206.36x = 3,309.55 × 745.52
  4. Step 4: Simplify right side
    2,206.36x = 2,467,335.72
  5. Step 5: Solve for x
    x = 2,467,335.72/2,206.36
  6. Step 6: Final answer
    x = 1,118.28

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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.