Home / 8,179.29-12,260.88-2,628.57

Finding the Fourth Proportional to 8,179.29, 12,260.88 and 2,628.57

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Solution

The fourth proportional to 8,179.29, 12,260.88 and 2,628.57 is: 3,940.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.29 : 12,260.88 = 2,628.57 : x
  2. Step 2: Convert to fraction form
    8,179.29/12,260.88 = 2,628.57/x
  3. Step 3: Cross multiply
    8,179.29x = 12,260.88 × 2,628.57
  4. Step 4: Simplify right side
    8,179.29x = 32,228,581.34
  5. Step 5: Solve for x
    x = 32,228,581.34/8,179.29
  6. Step 6: Final answer
    x = 3,940.27

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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.