Home / 2,833.20-3,911.76-2,168.88

Finding the Fourth Proportional to 2,833.20, 3,911.76 and 2,168.88

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Solution

The fourth proportional to 2,833.20, 3,911.76 and 2,168.88 is: 2,994.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,833.20 : 3,911.76 = 2,168.88 : x
  2. Step 2: Convert to fraction form
    2,833.20/3,911.76 = 2,168.88/x
  3. Step 3: Cross multiply
    2,833.20x = 3,911.76 × 2,168.88
  4. Step 4: Simplify right side
    2,833.20x = 8,484,138.03
  5. Step 5: Solve for x
    x = 8,484,138.03/2,833.20
  6. Step 6: Final answer
    x = 2,994.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.