Home / 1,619.09-2,426.54-680.97

Finding the Fourth Proportional to 1,619.09, 2,426.54 and 680.97

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Solution

The fourth proportional to 1,619.09, 2,426.54 and 680.97 is: 1,020.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.09 : 2,426.54 = 680.97 : x
  2. Step 2: Convert to fraction form
    1,619.09/2,426.54 = 680.97/x
  3. Step 3: Cross multiply
    1,619.09x = 2,426.54 × 680.97
  4. Step 4: Simplify right side
    1,619.09x = 1,652,400.94
  5. Step 5: Solve for x
    x = 1,652,400.94/1,619.09
  6. Step 6: Final answer
    x = 1,020.57

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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.