Home / 6,869.45-10,306.22-2,190.09

Finding the Fourth Proportional to 6,869.45, 10,306.22 and 2,190.09

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Solution

The fourth proportional to 6,869.45, 10,306.22 and 2,190.09 is: 3,285.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.45 : 10,306.22 = 2,190.09 : x
  2. Step 2: Convert to fraction form
    6,869.45/10,306.22 = 2,190.09/x
  3. Step 3: Cross multiply
    6,869.45x = 10,306.22 × 2,190.09
  4. Step 4: Simplify right side
    6,869.45x = 22,571,538.41
  5. Step 5: Solve for x
    x = 22,571,538.41/6,869.45
  6. Step 6: Final answer
    x = 3,285.79

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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.