Home / 2,177.97-3,005.86-1,293.77

Finding the Fourth Proportional to 2,177.97, 3,005.86 and 1,293.77

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Solution

The fourth proportional to 2,177.97, 3,005.86 and 1,293.77 is: 1,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.97 : 3,005.86 = 1,293.77 : x
  2. Step 2: Convert to fraction form
    2,177.97/3,005.86 = 1,293.77/x
  3. Step 3: Cross multiply
    2,177.97x = 3,005.86 × 1,293.77
  4. Step 4: Simplify right side
    2,177.97x = 3,888,902.24
  5. Step 5: Solve for x
    x = 3,888,902.24/2,177.97
  6. Step 6: Final answer
    x = 1,785.57

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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.