Home / 3,629.58-5,445.15-1,289.71

Finding the Fourth Proportional to 3,629.58, 5,445.15 and 1,289.71

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Solution

The fourth proportional to 3,629.58, 5,445.15 and 1,289.71 is: 1,934.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.58 : 5,445.15 = 1,289.71 : x
  2. Step 2: Convert to fraction form
    3,629.58/5,445.15 = 1,289.71/x
  3. Step 3: Cross multiply
    3,629.58x = 5,445.15 × 1,289.71
  4. Step 4: Simplify right side
    3,629.58x = 7,022,664.41
  5. Step 5: Solve for x
    x = 7,022,664.41/3,629.58
  6. Step 6: Final answer
    x = 1,934.84

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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.