Home / 3,174.64-4,376.76-2,179.54

Finding the Fourth Proportional to 3,174.64, 4,376.76 and 2,179.54

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Solution

The fourth proportional to 3,174.64, 4,376.76 and 2,179.54 is: 3,004.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.64 : 4,376.76 = 2,179.54 : x
  2. Step 2: Convert to fraction form
    3,174.64/4,376.76 = 2,179.54/x
  3. Step 3: Cross multiply
    3,174.64x = 4,376.76 × 2,179.54
  4. Step 4: Simplify right side
    3,174.64x = 9,539,323.49
  5. Step 5: Solve for x
    x = 9,539,323.49/3,174.64
  6. Step 6: Final answer
    x = 3,004.85

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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.