Home / 3,167.16-4,371.66-2,172

Finding the Fourth Proportional to 3,167.16, 4,371.66 and 2,172

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Solution

The fourth proportional to 3,167.16, 4,371.66 and 2,172 is: 2,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.16 : 4,371.66 = 2,172 : x
  2. Step 2: Convert to fraction form
    3,167.16/4,371.66 = 2,172/x
  3. Step 3: Cross multiply
    3,167.16x = 4,371.66 × 2,172
  4. Step 4: Simplify right side
    3,167.16x = 9,495,245.52
  5. Step 5: Solve for x
    x = 9,495,245.52/3,167.16
  6. Step 6: Final answer
    x = 2,998.03

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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.