Home / 2,178.52-3,006.35-1,183.79

Finding the Fourth Proportional to 2,178.52, 3,006.35 and 1,183.79

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Solution

The fourth proportional to 2,178.52, 3,006.35 and 1,183.79 is: 1,633.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.52 : 3,006.35 = 1,183.79 : x
  2. Step 2: Convert to fraction form
    2,178.52/3,006.35 = 1,183.79/x
  3. Step 3: Cross multiply
    2,178.52x = 3,006.35 × 1,183.79
  4. Step 4: Simplify right side
    2,178.52x = 3,558,899.76
  5. Step 5: Solve for x
    x = 3,558,899.76/2,178.52
  6. Step 6: Final answer
    x = 1,633.63

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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.