Home / 2,660.36-3,991.15-1,016.87

Finding the Fourth Proportional to 2,660.36, 3,991.15 and 1,016.87

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Solution

The fourth proportional to 2,660.36, 3,991.15 and 1,016.87 is: 1,525.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.36 : 3,991.15 = 1,016.87 : x
  2. Step 2: Convert to fraction form
    2,660.36/3,991.15 = 1,016.87/x
  3. Step 3: Cross multiply
    2,660.36x = 3,991.15 × 1,016.87
  4. Step 4: Simplify right side
    2,660.36x = 4,058,480.70
  5. Step 5: Solve for x
    x = 4,058,480.70/2,660.36
  6. Step 6: Final answer
    x = 1,525.54

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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.