Home / 3,021.21-4,533.75-1,289.79

Finding the Fourth Proportional to 3,021.21, 4,533.75 and 1,289.79

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Solution

The fourth proportional to 3,021.21, 4,533.75 and 1,289.79 is: 1,935.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.21 : 4,533.75 = 1,289.79 : x
  2. Step 2: Convert to fraction form
    3,021.21/4,533.75 = 1,289.79/x
  3. Step 3: Cross multiply
    3,021.21x = 4,533.75 × 1,289.79
  4. Step 4: Simplify right side
    3,021.21x = 5,847,585.41
  5. Step 5: Solve for x
    x = 5,847,585.41/3,021.21
  6. Step 6: Final answer
    x = 1,935.51

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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.