Home / 3,291.85-4,936.74-1,100.06

Finding the Fourth Proportional to 3,291.85, 4,936.74 and 1,100.06

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Solution

The fourth proportional to 3,291.85, 4,936.74 and 1,100.06 is: 1,649.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.85 : 4,936.74 = 1,100.06 : x
  2. Step 2: Convert to fraction form
    3,291.85/4,936.74 = 1,100.06/x
  3. Step 3: Cross multiply
    3,291.85x = 4,936.74 × 1,100.06
  4. Step 4: Simplify right side
    3,291.85x = 5,430,733.87
  5. Step 5: Solve for x
    x = 5,430,733.87/3,291.85
  6. Step 6: Final answer
    x = 1,649.75

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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.