Home / 2,861.23-4,286.31-1,624.90

Finding the Fourth Proportional to 2,861.23, 4,286.31 and 1,624.90

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Solution

The fourth proportional to 2,861.23, 4,286.31 and 1,624.90 is: 2,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.23 : 4,286.31 = 1,624.90 : x
  2. Step 2: Convert to fraction form
    2,861.23/4,286.31 = 1,624.90/x
  3. Step 3: Cross multiply
    2,861.23x = 4,286.31 × 1,624.90
  4. Step 4: Simplify right side
    2,861.23x = 6,964,825.12
  5. Step 5: Solve for x
    x = 6,964,825.12/2,861.23
  6. Step 6: Final answer
    x = 2,434.21

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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.