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Finding the Fourth Proportional to 3,709.82, 5,118.44 and 3,354.63

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Solution

The fourth proportional to 3,709.82, 5,118.44 and 3,354.63 is: 4,628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.82 : 5,118.44 = 3,354.63 : x
  2. Step 2: Convert to fraction form
    3,709.82/5,118.44 = 3,354.63/x
  3. Step 3: Cross multiply
    3,709.82x = 5,118.44 × 3,354.63
  4. Step 4: Simplify right side
    3,709.82x = 17,170,455.60
  5. Step 5: Solve for x
    x = 17,170,455.60/3,709.82
  6. Step 6: Final answer
    x = 4,628.39

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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.