Home / 1,963.29-2,709.38-1,206.99

Finding the Fourth Proportional to 1,963.29, 2,709.38 and 1,206.99

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Solution

The fourth proportional to 1,963.29, 2,709.38 and 1,206.99 is: 1,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.29 : 2,709.38 = 1,206.99 : x
  2. Step 2: Convert to fraction form
    1,963.29/2,709.38 = 1,206.99/x
  3. Step 3: Cross multiply
    1,963.29x = 2,709.38 × 1,206.99
  4. Step 4: Simplify right side
    1,963.29x = 3,270,194.57
  5. Step 5: Solve for x
    x = 3,270,194.57/1,963.29
  6. Step 6: Final answer
    x = 1,665.67

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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.