Home / 2,619.68-3,613.30-1,812.44

Finding the Fourth Proportional to 2,619.68, 3,613.30 and 1,812.44

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Solution

The fourth proportional to 2,619.68, 3,613.30 and 1,812.44 is: 2,499.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.68 : 3,613.30 = 1,812.44 : x
  2. Step 2: Convert to fraction form
    2,619.68/3,613.30 = 1,812.44/x
  3. Step 3: Cross multiply
    2,619.68x = 3,613.30 × 1,812.44
  4. Step 4: Simplify right side
    2,619.68x = 6,548,889.45
  5. Step 5: Solve for x
    x = 6,548,889.45/2,619.68
  6. Step 6: Final answer
    x = 2,499.88

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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.