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Finding the Fourth Proportional to 3,959.27, 5,938.90 and 3,217.98

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Solution

The fourth proportional to 3,959.27, 5,938.90 and 3,217.98 is: 4,826.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.27 : 5,938.90 = 3,217.98 : x
  2. Step 2: Convert to fraction form
    3,959.27/5,938.90 = 3,217.98/x
  3. Step 3: Cross multiply
    3,959.27x = 5,938.90 × 3,217.98
  4. Step 4: Simplify right side
    3,959.27x = 19,111,293.75
  5. Step 5: Solve for x
    x = 19,111,293.75/3,959.27
  6. Step 6: Final answer
    x = 4,826.98

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1.5x scale

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.