Home / 2,789.60-4,178.97-1,553.27

Finding the Fourth Proportional to 2,789.60, 4,178.97 and 1,553.27

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Solution

The fourth proportional to 2,789.60, 4,178.97 and 1,553.27 is: 2,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.60 : 4,178.97 = 1,553.27 : x
  2. Step 2: Convert to fraction form
    2,789.60/4,178.97 = 1,553.27/x
  3. Step 3: Cross multiply
    2,789.60x = 4,178.97 × 1,553.27
  4. Step 4: Simplify right side
    2,789.60x = 6,491,047.84
  5. Step 5: Solve for x
    x = 6,491,047.84/2,789.60
  6. Step 6: Final answer
    x = 2,326.88

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1.5x scale

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.