Home / 3,965.40-5,945.88-1,627.02

Finding the Fourth Proportional to 3,965.40, 5,945.88 and 1,627.02

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Solution

The fourth proportional to 3,965.40, 5,945.88 and 1,627.02 is: 2,439.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.40 : 5,945.88 = 1,627.02 : x
  2. Step 2: Convert to fraction form
    3,965.40/5,945.88 = 1,627.02/x
  3. Step 3: Cross multiply
    3,965.40x = 5,945.88 × 1,627.02
  4. Step 4: Simplify right side
    3,965.40x = 9,674,065.68
  5. Step 5: Solve for x
    x = 9,674,065.68/3,965.40
  6. Step 6: Final answer
    x = 2,439.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.