Home / 2,418.08-3,618.88-1,872.68

Finding the Fourth Proportional to 2,418.08, 3,618.88 and 1,872.68

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Solution

The fourth proportional to 2,418.08, 3,618.88 and 1,872.68 is: 2,802.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.08 : 3,618.88 = 1,872.68 : x
  2. Step 2: Convert to fraction form
    2,418.08/3,618.88 = 1,872.68/x
  3. Step 3: Cross multiply
    2,418.08x = 3,618.88 × 1,872.68
  4. Step 4: Simplify right side
    2,418.08x = 6,777,004.20
  5. Step 5: Solve for x
    x = 6,777,004.20/2,418.08
  6. Step 6: Final answer
    x = 2,802.64

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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.