Home / 2,179.24-3,007.94-1,247.88

Finding the Fourth Proportional to 2,179.24, 3,007.94 and 1,247.88

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Solution

The fourth proportional to 2,179.24, 3,007.94 and 1,247.88 is: 1,722.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.24 : 3,007.94 = 1,247.88 : x
  2. Step 2: Convert to fraction form
    2,179.24/3,007.94 = 1,247.88/x
  3. Step 3: Cross multiply
    2,179.24x = 3,007.94 × 1,247.88
  4. Step 4: Simplify right side
    2,179.24x = 3,753,548.17
  5. Step 5: Solve for x
    x = 3,753,548.17/2,179.24
  6. Step 6: Final answer
    x = 1,722.41

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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.