Home / 2,664.77-3,996.46-1,105.21

Finding the Fourth Proportional to 2,664.77, 3,996.46 and 1,105.21

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Solution

The fourth proportional to 2,664.77, 3,996.46 and 1,105.21 is: 1,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.77 : 3,996.46 = 1,105.21 : x
  2. Step 2: Convert to fraction form
    2,664.77/3,996.46 = 1,105.21/x
  3. Step 3: Cross multiply
    2,664.77x = 3,996.46 × 1,105.21
  4. Step 4: Simplify right side
    2,664.77x = 4,416,927.56
  5. Step 5: Solve for x
    x = 4,416,927.56/2,664.77
  6. Step 6: Final answer
    x = 1,657.53

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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.