Home / 2,178.62-3,006.48-1,183.88

Finding the Fourth Proportional to 2,178.62, 3,006.48 and 1,183.88

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Solution

The fourth proportional to 2,178.62, 3,006.48 and 1,183.88 is: 1,633.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.62 : 3,006.48 = 1,183.88 : x
  2. Step 2: Convert to fraction form
    2,178.62/3,006.48 = 1,183.88/x
  3. Step 3: Cross multiply
    2,178.62x = 3,006.48 × 1,183.88
  4. Step 4: Simplify right side
    2,178.62x = 3,559,323.50
  5. Step 5: Solve for x
    x = 3,559,323.50/2,178.62
  6. Step 6: Final answer
    x = 1,633.75

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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.