Home / 3,212.64-4,434.03-1,815.39

Finding the Fourth Proportional to 3,212.64, 4,434.03 and 1,815.39

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Solution

The fourth proportional to 3,212.64, 4,434.03 and 1,815.39 is: 2,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.64 : 4,434.03 = 1,815.39 : x
  2. Step 2: Convert to fraction form
    3,212.64/4,434.03 = 1,815.39/x
  3. Step 3: Cross multiply
    3,212.64x = 4,434.03 × 1,815.39
  4. Step 4: Simplify right side
    3,212.64x = 8,049,493.72
  5. Step 5: Solve for x
    x = 8,049,493.72/3,212.64
  6. Step 6: Final answer
    x = 2,505.57

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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.