Home / 1,965.12-2,943.54-1,182.66

Finding the Fourth Proportional to 1,965.12, 2,943.54 and 1,182.66

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Solution

The fourth proportional to 1,965.12, 2,943.54 and 1,182.66 is: 1,771.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.12 : 2,943.54 = 1,182.66 : x
  2. Step 2: Convert to fraction form
    1,965.12/2,943.54 = 1,182.66/x
  3. Step 3: Cross multiply
    1,965.12x = 2,943.54 × 1,182.66
  4. Step 4: Simplify right side
    1,965.12x = 3,481,207.02
  5. Step 5: Solve for x
    x = 3,481,207.02/1,965.12
  6. Step 6: Final answer
    x = 1,771.50

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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.