Home / 2,922.28-4,390.20-2,764.94

Finding the Fourth Proportional to 2,922.28, 4,390.20 and 2,764.94

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Solution

The fourth proportional to 2,922.28, 4,390.20 and 2,764.94 is: 4,153.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.28 : 4,390.20 = 2,764.94 : x
  2. Step 2: Convert to fraction form
    2,922.28/4,390.20 = 2,764.94/x
  3. Step 3: Cross multiply
    2,922.28x = 4,390.20 × 2,764.94
  4. Step 4: Simplify right side
    2,922.28x = 12,138,617.64
  5. Step 5: Solve for x
    x = 12,138,617.64/2,922.28
  6. Step 6: Final answer
    x = 4,153.82

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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.