Home / 3,982.25-5,973.38-1,643.58

Finding the Fourth Proportional to 3,982.25, 5,973.38 and 1,643.58

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Solution

The fourth proportional to 3,982.25, 5,973.38 and 1,643.58 is: 2,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.25 : 5,973.38 = 1,643.58 : x
  2. Step 2: Convert to fraction form
    3,982.25/5,973.38 = 1,643.58/x
  3. Step 3: Cross multiply
    3,982.25x = 5,973.38 × 1,643.58
  4. Step 4: Simplify right side
    3,982.25x = 9,817,719.68
  5. Step 5: Solve for x
    x = 9,817,719.68/3,982.25
  6. Step 6: Final answer
    x = 2,465.37

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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.