Home / 2,949.20-4,419.72-1,777.68

Finding the Fourth Proportional to 2,949.20, 4,419.72 and 1,777.68

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Solution

The fourth proportional to 2,949.20, 4,419.72 and 1,777.68 is: 2,664.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.20 : 4,419.72 = 1,777.68 : x
  2. Step 2: Convert to fraction form
    2,949.20/4,419.72 = 1,777.68/x
  3. Step 3: Cross multiply
    2,949.20x = 4,419.72 × 1,777.68
  4. Step 4: Simplify right side
    2,949.20x = 7,856,847.85
  5. Step 5: Solve for x
    x = 7,856,847.85/2,949.20
  6. Step 6: Final answer
    x = 2,664.06

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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.