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Finding the Fourth Proportional to 3,174.48, 4,753.47 and 2,190.33

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Solution

The fourth proportional to 3,174.48, 4,753.47 and 2,190.33 is: 3,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.48 : 4,753.47 = 2,190.33 : x
  2. Step 2: Convert to fraction form
    3,174.48/4,753.47 = 2,190.33/x
  3. Step 3: Cross multiply
    3,174.48x = 4,753.47 × 2,190.33
  4. Step 4: Simplify right side
    3,174.48x = 10,411,667.95
  5. Step 5: Solve for x
    x = 10,411,667.95/3,174.48
  6. Step 6: Final answer
    x = 3,279.80

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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.