Home / 2,872.22-4,308.39-2,388.65

Finding the Fourth Proportional to 2,872.22, 4,308.39 and 2,388.65

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Solution

The fourth proportional to 2,872.22, 4,308.39 and 2,388.65 is: 3,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.22 : 4,308.39 = 2,388.65 : x
  2. Step 2: Convert to fraction form
    2,872.22/4,308.39 = 2,388.65/x
  3. Step 3: Cross multiply
    2,872.22x = 4,308.39 × 2,388.65
  4. Step 4: Simplify right side
    2,872.22x = 10,291,214.23
  5. Step 5: Solve for x
    x = 10,291,214.23/2,872.22
  6. Step 6: Final answer
    x = 3,583.02

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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.