Home / 2,660.16-3,990.92-1,016.54

Finding the Fourth Proportional to 2,660.16, 3,990.92 and 1,016.54

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Solution

The fourth proportional to 2,660.16, 3,990.92 and 1,016.54 is: 1,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.16 : 3,990.92 = 1,016.54 : x
  2. Step 2: Convert to fraction form
    2,660.16/3,990.92 = 1,016.54/x
  3. Step 3: Cross multiply
    2,660.16x = 3,990.92 × 1,016.54
  4. Step 4: Simplify right side
    2,660.16x = 4,056,904.78
  5. Step 5: Solve for x
    x = 4,056,904.78/2,660.16
  6. Step 6: Final answer
    x = 1,525.06

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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.