Home / 2,418.08-3,628.20-1,118.84

Finding the Fourth Proportional to 2,418.08, 3,628.20 and 1,118.84

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Solution

The fourth proportional to 2,418.08, 3,628.20 and 1,118.84 is: 1,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.08 : 3,628.20 = 1,118.84 : x
  2. Step 2: Convert to fraction form
    2,418.08/3,628.20 = 1,118.84/x
  3. Step 3: Cross multiply
    2,418.08x = 3,628.20 × 1,118.84
  4. Step 4: Simplify right side
    2,418.08x = 4,059,375.29
  5. Step 5: Solve for x
    x = 4,059,375.29/2,418.08
  6. Step 6: Final answer
    x = 1,678.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.