Home / 3,629.91-5,447.70-1,988.31

Finding the Fourth Proportional to 3,629.91, 5,447.70 and 1,988.31

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Solution

The fourth proportional to 3,629.91, 5,447.70 and 1,988.31 is: 2,984.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.91 : 5,447.70 = 1,988.31 : x
  2. Step 2: Convert to fraction form
    3,629.91/5,447.70 = 1,988.31/x
  3. Step 3: Cross multiply
    3,629.91x = 5,447.70 × 1,988.31
  4. Step 4: Simplify right side
    3,629.91x = 10,831,716.39
  5. Step 5: Solve for x
    x = 10,831,716.39/3,629.91
  6. Step 6: Final answer
    x = 2,984.02

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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.