Home / 3,134.88-4,707.72-2,318.40

Finding the Fourth Proportional to 3,134.88, 4,707.72 and 2,318.40

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Solution

The fourth proportional to 3,134.88, 4,707.72 and 2,318.40 is: 3,481.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.88 : 4,707.72 = 2,318.40 : x
  2. Step 2: Convert to fraction form
    3,134.88/4,707.72 = 2,318.40/x
  3. Step 3: Cross multiply
    3,134.88x = 4,707.72 × 2,318.40
  4. Step 4: Simplify right side
    3,134.88x = 10,914,378.05
  5. Step 5: Solve for x
    x = 10,914,378.05/3,134.88
  6. Step 6: Final answer
    x = 3,481.59

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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.