Home / 1,965.30-2,712.57-1,179.18

Finding the Fourth Proportional to 1,965.30, 2,712.57 and 1,179.18

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Solution

The fourth proportional to 1,965.30, 2,712.57 and 1,179.18 is: 1,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.30 : 2,712.57 = 1,179.18 : x
  2. Step 2: Convert to fraction form
    1,965.30/2,712.57 = 1,179.18/x
  3. Step 3: Cross multiply
    1,965.30x = 2,712.57 × 1,179.18
  4. Step 4: Simplify right side
    1,965.30x = 3,198,608.29
  5. Step 5: Solve for x
    x = 3,198,608.29/1,965.30
  6. Step 6: Final answer
    x = 1,627.54

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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.