Home / 2,660.16-3,667.84-1,912.96

Finding the Fourth Proportional to 2,660.16, 3,667.84 and 1,912.96

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Solution

The fourth proportional to 2,660.16, 3,667.84 and 1,912.96 is: 2,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.16 : 3,667.84 = 1,912.96 : x
  2. Step 2: Convert to fraction form
    2,660.16/3,667.84 = 1,912.96/x
  3. Step 3: Cross multiply
    2,660.16x = 3,667.84 × 1,912.96
  4. Step 4: Simplify right side
    2,660.16x = 7,016,431.21
  5. Step 5: Solve for x
    x = 7,016,431.21/2,660.16
  6. Step 6: Final answer
    x = 2,637.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.