Home / 7,128.45-10,694.50-2,744.73

Finding the Fourth Proportional to 7,128.45, 10,694.50 and 2,744.73

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Solution

The fourth proportional to 7,128.45, 10,694.50 and 2,744.73 is: 4,117.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.45 : 10,694.50 = 2,744.73 : x
  2. Step 2: Convert to fraction form
    7,128.45/10,694.50 = 2,744.73/x
  3. Step 3: Cross multiply
    7,128.45x = 10,694.50 × 2,744.73
  4. Step 4: Simplify right side
    7,128.45x = 29,353,508.12
  5. Step 5: Solve for x
    x = 29,353,508.12/7,128.45
  6. Step 6: Final answer
    x = 4,117.80

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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.