Home / 3,318.76-4,579.90-1,826.78

Finding the Fourth Proportional to 3,318.76, 4,579.90 and 1,826.78

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Solution

The fourth proportional to 3,318.76, 4,579.90 and 1,826.78 is: 2,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.76 : 4,579.90 = 1,826.78 : x
  2. Step 2: Convert to fraction form
    3,318.76/4,579.90 = 1,826.78/x
  3. Step 3: Cross multiply
    3,318.76x = 4,579.90 × 1,826.78
  4. Step 4: Simplify right side
    3,318.76x = 8,366,469.72
  5. Step 5: Solve for x
    x = 8,366,469.72/3,318.76
  6. Step 6: Final answer
    x = 2,520.96

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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.