Home / 3,909.49-5,388.69-2,414.14

Finding the Fourth Proportional to 3,909.49, 5,388.69 and 2,414.14

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Solution

The fourth proportional to 3,909.49, 5,388.69 and 2,414.14 is: 3,327.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.49 : 5,388.69 = 2,414.14 : x
  2. Step 2: Convert to fraction form
    3,909.49/5,388.69 = 2,414.14/x
  3. Step 3: Cross multiply
    3,909.49x = 5,388.69 × 2,414.14
  4. Step 4: Simplify right side
    3,909.49x = 13,009,052.08
  5. Step 5: Solve for x
    x = 13,009,052.08/3,909.49
  6. Step 6: Final answer
    x = 3,327.56

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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.