Home / 2,660.19-3,986.15-1,015.84

Finding the Fourth Proportional to 2,660.19, 3,986.15 and 1,015.84

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Solution

The fourth proportional to 2,660.19, 3,986.15 and 1,015.84 is: 1,522.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.19 : 3,986.15 = 1,015.84 : x
  2. Step 2: Convert to fraction form
    2,660.19/3,986.15 = 1,015.84/x
  3. Step 3: Cross multiply
    2,660.19x = 3,986.15 × 1,015.84
  4. Step 4: Simplify right side
    2,660.19x = 4,049,310.30
  5. Step 5: Solve for x
    x = 4,049,310.30/2,660.19
  6. Step 6: Final answer
    x = 1,522.19

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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.