Home / 1,179.46-1,627.11-1,001.68

Finding the Fourth Proportional to 1,179.46, 1,627.11 and 1,001.68

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Solution

The fourth proportional to 1,179.46, 1,627.11 and 1,001.68 is: 1,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.46 : 1,627.11 = 1,001.68 : x
  2. Step 2: Convert to fraction form
    1,179.46/1,627.11 = 1,001.68/x
  3. Step 3: Cross multiply
    1,179.46x = 1,627.11 × 1,001.68
  4. Step 4: Simplify right side
    1,179.46x = 1,629,843.54
  5. Step 5: Solve for x
    x = 1,629,843.54/1,179.46
  6. Step 6: Final answer
    x = 1,381.86

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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.