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Finding the Fourth Proportional to 3,679.00, 5,076.76 and 2,085.68

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Solution

The fourth proportional to 3,679.00, 5,076.76 and 2,085.68 is: 2,878.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.00 : 5,076.76 = 2,085.68 : x
  2. Step 2: Convert to fraction form
    3,679.00/5,076.76 = 2,085.68/x
  3. Step 3: Cross multiply
    3,679.00x = 5,076.76 × 2,085.68
  4. Step 4: Simplify right side
    3,679.00x = 10,588,508.19
  5. Step 5: Solve for x
    x = 10,588,508.19/3,679.00
  6. Step 6: Final answer
    x = 2,878.09

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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.