Home / 2,017.16-3,020.46-1,321.64

Finding the Fourth Proportional to 2,017.16, 3,020.46 and 1,321.64

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Solution

The fourth proportional to 2,017.16, 3,020.46 and 1,321.64 is: 1,979.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.16 : 3,020.46 = 1,321.64 : x
  2. Step 2: Convert to fraction form
    2,017.16/3,020.46 = 1,321.64/x
  3. Step 3: Cross multiply
    2,017.16x = 3,020.46 × 1,321.64
  4. Step 4: Simplify right side
    2,017.16x = 3,991,960.75
  5. Step 5: Solve for x
    x = 3,991,960.75/2,017.16
  6. Step 6: Final answer
    x = 1,979.00

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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.