Home / 2,764.45-4,154.82-2,560.78

Finding the Fourth Proportional to 2,764.45, 4,154.82 and 2,560.78

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Solution

The fourth proportional to 2,764.45, 4,154.82 and 2,560.78 is: 3,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.45 : 4,154.82 = 2,560.78 : x
  2. Step 2: Convert to fraction form
    2,764.45/4,154.82 = 2,560.78/x
  3. Step 3: Cross multiply
    2,764.45x = 4,154.82 × 2,560.78
  4. Step 4: Simplify right side
    2,764.45x = 10,639,579.96
  5. Step 5: Solve for x
    x = 10,639,579.96/2,764.45
  6. Step 6: Final answer
    x = 3,848.71

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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.