Home / 3,619.39-5,428.73-2,456.86

Finding the Fourth Proportional to 3,619.39, 5,428.73 and 2,456.86

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Solution

The fourth proportional to 3,619.39, 5,428.73 and 2,456.86 is: 3,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.39 : 5,428.73 = 2,456.86 : x
  2. Step 2: Convert to fraction form
    3,619.39/5,428.73 = 2,456.86/x
  3. Step 3: Cross multiply
    3,619.39x = 5,428.73 × 2,456.86
  4. Step 4: Simplify right side
    3,619.39x = 13,337,629.59
  5. Step 5: Solve for x
    x = 13,337,629.59/3,619.39
  6. Step 6: Final answer
    x = 3,685.05

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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.