Home / 1,965.67-2,712.62-1,179.71

Finding the Fourth Proportional to 1,965.67, 2,712.62 and 1,179.71

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Solution

The fourth proportional to 1,965.67, 2,712.62 and 1,179.71 is: 1,628.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.67 : 2,712.62 = 1,179.71 : x
  2. Step 2: Convert to fraction form
    1,965.67/2,712.62 = 1,179.71/x
  3. Step 3: Cross multiply
    1,965.67x = 2,712.62 × 1,179.71
  4. Step 4: Simplify right side
    1,965.67x = 3,200,104.94
  5. Step 5: Solve for x
    x = 3,200,104.94/1,965.67
  6. Step 6: Final answer
    x = 1,628.00

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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.