Home / 1,964.82-2,711.68-1,178.84

Finding the Fourth Proportional to 1,964.82, 2,711.68 and 1,178.84

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Solution

The fourth proportional to 1,964.82, 2,711.68 and 1,178.84 is: 1,626.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.82 : 2,711.68 = 1,178.84 : x
  2. Step 2: Convert to fraction form
    1,964.82/2,711.68 = 1,178.84/x
  3. Step 3: Cross multiply
    1,964.82x = 2,711.68 × 1,178.84
  4. Step 4: Simplify right side
    1,964.82x = 3,196,636.85
  5. Step 5: Solve for x
    x = 3,196,636.85/1,964.82
  6. Step 6: Final answer
    x = 1,626.94

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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.