Home / 3,189.28-4,783.92-2,956

Finding the Fourth Proportional to 3,189.28, 4,783.92 and 2,956

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Solution

The fourth proportional to 3,189.28, 4,783.92 and 2,956 is: 4,434

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.28 : 4,783.92 = 2,956 : x
  2. Step 2: Convert to fraction form
    3,189.28/4,783.92 = 2,956/x
  3. Step 3: Cross multiply
    3,189.28x = 4,783.92 × 2,956
  4. Step 4: Simplify right side
    3,189.28x = 14,141,267.52
  5. Step 5: Solve for x
    x = 14,141,267.52/3,189.28
  6. Step 6: Final answer
    x = 4,434

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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.