Home / 1,966.06-2,942.61-1,087.21

Finding the Fourth Proportional to 1,966.06, 2,942.61 and 1,087.21

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Solution

The fourth proportional to 1,966.06, 2,942.61 and 1,087.21 is: 1,627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.06 : 2,942.61 = 1,087.21 : x
  2. Step 2: Convert to fraction form
    1,966.06/2,942.61 = 1,087.21/x
  3. Step 3: Cross multiply
    1,966.06x = 2,942.61 × 1,087.21
  4. Step 4: Simplify right side
    1,966.06x = 3,199,235.02
  5. Step 5: Solve for x
    x = 3,199,235.02/1,966.06
  6. Step 6: Final answer
    x = 1,627.23

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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.