Home / 6,872.13-10,308.21-2,489.49

Finding the Fourth Proportional to 6,872.13, 10,308.21 and 2,489.49

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Solution

The fourth proportional to 6,872.13, 10,308.21 and 2,489.49 is: 3,734.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.13 : 10,308.21 = 2,489.49 : x
  2. Step 2: Convert to fraction form
    6,872.13/10,308.21 = 2,489.49/x
  3. Step 3: Cross multiply
    6,872.13x = 10,308.21 × 2,489.49
  4. Step 4: Simplify right side
    6,872.13x = 25,662,185.71
  5. Step 5: Solve for x
    x = 25,662,185.71/6,872.13
  6. Step 6: Final answer
    x = 3,734.24

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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.