Home / 2,489.10-3,733.69-1,958.75

Finding the Fourth Proportional to 2,489.10, 3,733.69 and 1,958.75

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Solution

The fourth proportional to 2,489.10, 3,733.69 and 1,958.75 is: 2,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.10 : 3,733.69 = 1,958.75 : x
  2. Step 2: Convert to fraction form
    2,489.10/3,733.69 = 1,958.75/x
  3. Step 3: Cross multiply
    2,489.10x = 3,733.69 × 1,958.75
  4. Step 4: Simplify right side
    2,489.10x = 7,313,365.29
  5. Step 5: Solve for x
    x = 7,313,365.29/2,489.10
  6. Step 6: Final answer
    x = 2,938.16

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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.