Home / 3,270.70-4,885.25-2,809.81

Finding the Fourth Proportional to 3,270.70, 4,885.25 and 2,809.81

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Solution

The fourth proportional to 3,270.70, 4,885.25 and 2,809.81 is: 4,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.70 : 4,885.25 = 2,809.81 : x
  2. Step 2: Convert to fraction form
    3,270.70/4,885.25 = 2,809.81/x
  3. Step 3: Cross multiply
    3,270.70x = 4,885.25 × 2,809.81
  4. Step 4: Simplify right side
    3,270.70x = 13,726,624.30
  5. Step 5: Solve for x
    x = 13,726,624.30/3,270.70
  6. Step 6: Final answer
    x = 4,196.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.