Home / 2,660.58-3,991.77-1,101.33

Finding the Fourth Proportional to 2,660.58, 3,991.77 and 1,101.33

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Solution

The fourth proportional to 2,660.58, 3,991.77 and 1,101.33 is: 1,652.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.58 : 3,991.77 = 1,101.33 : x
  2. Step 2: Convert to fraction form
    2,660.58/3,991.77 = 1,101.33/x
  3. Step 3: Cross multiply
    2,660.58x = 3,991.77 × 1,101.33
  4. Step 4: Simplify right side
    2,660.58x = 4,396,256.05
  5. Step 5: Solve for x
    x = 4,396,256.05/2,660.58
  6. Step 6: Final answer
    x = 1,652.37

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1.5x scale

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.