Home / 2,091.75-2,884.21-1,964.62

Finding the Fourth Proportional to 2,091.75, 2,884.21 and 1,964.62

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Solution

The fourth proportional to 2,091.75, 2,884.21 and 1,964.62 is: 2,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.75 : 2,884.21 = 1,964.62 : x
  2. Step 2: Convert to fraction form
    2,091.75/2,884.21 = 1,964.62/x
  3. Step 3: Cross multiply
    2,091.75x = 2,884.21 × 1,964.62
  4. Step 4: Simplify right side
    2,091.75x = 5,666,376.65
  5. Step 5: Solve for x
    x = 5,666,376.65/2,091.75
  6. Step 6: Final answer
    x = 2,708.92

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1.5x scale

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.