Home / 3,202.88-4,419.92-1,805.64

Finding the Fourth Proportional to 3,202.88, 4,419.92 and 1,805.64

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Solution

The fourth proportional to 3,202.88, 4,419.92 and 1,805.64 is: 2,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202.88 : 4,419.92 = 1,805.64 : x
  2. Step 2: Convert to fraction form
    3,202.88/4,419.92 = 1,805.64/x
  3. Step 3: Cross multiply
    3,202.88x = 4,419.92 × 1,805.64
  4. Step 4: Simplify right side
    3,202.88x = 7,980,784.35
  5. Step 5: Solve for x
    x = 7,980,784.35/3,202.88
  6. Step 6: Final answer
    x = 2,491.75

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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.