Home / 2,179.49-3,004.88-1,780.73

Finding the Fourth Proportional to 2,179.49, 3,004.88 and 1,780.73

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Solution

The fourth proportional to 2,179.49, 3,004.88 and 1,780.73 is: 2,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.49 : 3,004.88 = 1,780.73 : x
  2. Step 2: Convert to fraction form
    2,179.49/3,004.88 = 1,780.73/x
  3. Step 3: Cross multiply
    2,179.49x = 3,004.88 × 1,780.73
  4. Step 4: Simplify right side
    2,179.49x = 5,350,879.96
  5. Step 5: Solve for x
    x = 5,350,879.96/2,179.49
  6. Step 6: Final answer
    x = 2,455.11

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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.