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Finding the Fourth Proportional to 2,951.34, 4,072.87 and 1,692.45

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Solution

The fourth proportional to 2,951.34, 4,072.87 and 1,692.45 is: 2,335.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.34 : 4,072.87 = 1,692.45 : x
  2. Step 2: Convert to fraction form
    2,951.34/4,072.87 = 1,692.45/x
  3. Step 3: Cross multiply
    2,951.34x = 4,072.87 × 1,692.45
  4. Step 4: Simplify right side
    2,951.34x = 6,893,104.24
  5. Step 5: Solve for x
    x = 6,893,104.24/2,951.34
  6. Step 6: Final answer
    x = 2,335.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.