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Finding the Fourth Proportional to 3,672.69, 5,069.69 and 2,181.34

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Solution

The fourth proportional to 3,672.69, 5,069.69 and 2,181.34 is: 3,011.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.69 : 5,069.69 = 2,181.34 : x
  2. Step 2: Convert to fraction form
    3,672.69/5,069.69 = 2,181.34/x
  3. Step 3: Cross multiply
    3,672.69x = 5,069.69 × 2,181.34
  4. Step 4: Simplify right side
    3,672.69x = 11,058,717.58
  5. Step 5: Solve for x
    x = 11,058,717.58/3,672.69
  6. Step 6: Final answer
    x = 3,011.07

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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.