Home / 1,949.50-2,692.49-1,512.70

Finding the Fourth Proportional to 1,949.50, 2,692.49 and 1,512.70

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Solution

The fourth proportional to 1,949.50, 2,692.49 and 1,512.70 is: 2,089.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.50 : 2,692.49 = 1,512.70 : x
  2. Step 2: Convert to fraction form
    1,949.50/2,692.49 = 1,512.70/x
  3. Step 3: Cross multiply
    1,949.50x = 2,692.49 × 1,512.70
  4. Step 4: Simplify right side
    1,949.50x = 4,072,929.62
  5. Step 5: Solve for x
    x = 4,072,929.62/1,949.50
  6. Step 6: Final answer
    x = 2,089.22

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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.