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Finding the Fourth Proportional to 3,752.84, 5,178.84 and 2,181.26

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Solution

The fourth proportional to 3,752.84, 5,178.84 and 2,181.26 is: 3,010.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.84 : 5,178.84 = 2,181.26 : x
  2. Step 2: Convert to fraction form
    3,752.84/5,178.84 = 2,181.26/x
  3. Step 3: Cross multiply
    3,752.84x = 5,178.84 × 2,181.26
  4. Step 4: Simplify right side
    3,752.84x = 11,296,396.54
  5. Step 5: Solve for x
    x = 11,296,396.54/3,752.84
  6. Step 6: Final answer
    x = 3,010.09

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1.5x scale

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.