Home / 3,179.76-4,775.28-2,771.52

Finding the Fourth Proportional to 3,179.76, 4,775.28 and 2,771.52

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Solution

The fourth proportional to 3,179.76, 4,775.28 and 2,771.52 is: 4,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.76 : 4,775.28 = 2,771.52 : x
  2. Step 2: Convert to fraction form
    3,179.76/4,775.28 = 2,771.52/x
  3. Step 3: Cross multiply
    3,179.76x = 4,775.28 × 2,771.52
  4. Step 4: Simplify right side
    3,179.76x = 13,234,784.03
  5. Step 5: Solve for x
    x = 13,234,784.03/3,179.76
  6. Step 6: Final answer
    x = 4,162.20

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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.