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Finding the Fourth Proportional to 1,951.99, 2,692.51 and 1,362.31

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Solution

The fourth proportional to 1,951.99, 2,692.51 and 1,362.31 is: 1,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.99 : 2,692.51 = 1,362.31 : x
  2. Step 2: Convert to fraction form
    1,951.99/2,692.51 = 1,362.31/x
  3. Step 3: Cross multiply
    1,951.99x = 2,692.51 × 1,362.31
  4. Step 4: Simplify right side
    1,951.99x = 3,668,033.30
  5. Step 5: Solve for x
    x = 3,668,033.30/1,951.99
  6. Step 6: Final answer
    x = 1,879.13

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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.