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Finding the Fourth Proportional to 1,795.14, 2,692.26 and 640.89

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Solution

The fourth proportional to 1,795.14, 2,692.26 and 640.89 is: 961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.14 : 2,692.26 = 640.89 : x
  2. Step 2: Convert to fraction form
    1,795.14/2,692.26 = 640.89/x
  3. Step 3: Cross multiply
    1,795.14x = 2,692.26 × 640.89
  4. Step 4: Simplify right side
    1,795.14x = 1,725,442.51
  5. Step 5: Solve for x
    x = 1,725,442.51/1,795.14
  6. Step 6: Final answer
    x = 961.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.