Home / 2,179.16-3,007.50-1,247.96

Finding the Fourth Proportional to 2,179.16, 3,007.50 and 1,247.96

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Solution

The fourth proportional to 2,179.16, 3,007.50 and 1,247.96 is: 1,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.16 : 3,007.50 = 1,247.96 : x
  2. Step 2: Convert to fraction form
    2,179.16/3,007.50 = 1,247.96/x
  3. Step 3: Cross multiply
    2,179.16x = 3,007.50 × 1,247.96
  4. Step 4: Simplify right side
    2,179.16x = 3,753,239.70
  5. Step 5: Solve for x
    x = 3,753,239.70/2,179.16
  6. Step 6: Final answer
    x = 1,722.33

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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.