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Finding the Fourth Proportional to 1,795.91, 2,692.24 and 641.39

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Solution

The fourth proportional to 1,795.91, 2,692.24 and 641.39 is: 961.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.91 : 2,692.24 = 641.39 : x
  2. Step 2: Convert to fraction form
    1,795.91/2,692.24 = 641.39/x
  3. Step 3: Cross multiply
    1,795.91x = 2,692.24 × 641.39
  4. Step 4: Simplify right side
    1,795.91x = 1,726,775.81
  5. Step 5: Solve for x
    x = 1,726,775.81/1,795.91
  6. Step 6: Final answer
    x = 961.50

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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.