Home / 1,842.68-2,542.79-1,179.70

Finding the Fourth Proportional to 1,842.68, 2,542.79 and 1,179.70

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Solution

The fourth proportional to 1,842.68, 2,542.79 and 1,179.70 is: 1,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.68 : 2,542.79 = 1,179.70 : x
  2. Step 2: Convert to fraction form
    1,842.68/2,542.79 = 1,179.70/x
  3. Step 3: Cross multiply
    1,842.68x = 2,542.79 × 1,179.70
  4. Step 4: Simplify right side
    1,842.68x = 2,999,725.96
  5. Step 5: Solve for x
    x = 2,999,725.96/1,842.68
  6. Step 6: Final answer
    x = 1,627.91

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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.