Home / 3,171.92-4,762.77-2,828.48

Finding the Fourth Proportional to 3,171.92, 4,762.77 and 2,828.48

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Solution

The fourth proportional to 3,171.92, 4,762.77 and 2,828.48 is: 4,247.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.92 : 4,762.77 = 2,828.48 : x
  2. Step 2: Convert to fraction form
    3,171.92/4,762.77 = 2,828.48/x
  3. Step 3: Cross multiply
    3,171.92x = 4,762.77 × 2,828.48
  4. Step 4: Simplify right side
    3,171.92x = 13,471,399.69
  5. Step 5: Solve for x
    x = 13,471,399.69/3,171.92
  6. Step 6: Final answer
    x = 4,247.08

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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.