Home / 3,619.26-5,428.61-1,671.48

Finding the Fourth Proportional to 3,619.26, 5,428.61 and 1,671.48

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Solution

The fourth proportional to 3,619.26, 5,428.61 and 1,671.48 is: 2,507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.26 : 5,428.61 = 1,671.48 : x
  2. Step 2: Convert to fraction form
    3,619.26/5,428.61 = 1,671.48/x
  3. Step 3: Cross multiply
    3,619.26x = 5,428.61 × 1,671.48
  4. Step 4: Simplify right side
    3,619.26x = 9,073,804.69
  5. Step 5: Solve for x
    x = 9,073,804.69/3,619.26
  6. Step 6: Final answer
    x = 2,507.09

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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.