Home / 4,121.82-5,675.94-3,408.35

Finding the Fourth Proportional to 4,121.82, 5,675.94 and 3,408.35

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Solution

The fourth proportional to 4,121.82, 5,675.94 and 3,408.35 is: 4,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.82 : 5,675.94 = 3,408.35 : x
  2. Step 2: Convert to fraction form
    4,121.82/5,675.94 = 3,408.35/x
  3. Step 3: Cross multiply
    4,121.82x = 5,675.94 × 3,408.35
  4. Step 4: Simplify right side
    4,121.82x = 19,345,561.72
  5. Step 5: Solve for x
    x = 19,345,561.72/4,121.82
  6. Step 6: Final answer
    x = 4,693.45

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Half scale
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Double scale
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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.