Home / 3,489.89-4,817.30-2,311.34

Finding the Fourth Proportional to 3,489.89, 4,817.30 and 2,311.34

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Solution

The fourth proportional to 3,489.89, 4,817.30 and 2,311.34 is: 3,190.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.89 : 4,817.30 = 2,311.34 : x
  2. Step 2: Convert to fraction form
    3,489.89/4,817.30 = 2,311.34/x
  3. Step 3: Cross multiply
    3,489.89x = 4,817.30 × 2,311.34
  4. Step 4: Simplify right side
    3,489.89x = 11,134,382.54
  5. Step 5: Solve for x
    x = 11,134,382.54/3,489.89
  6. Step 6: Final answer
    x = 3,190.47

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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.