Home / 3,211.34-4,429.73-1,951.38

Finding the Fourth Proportional to 3,211.34, 4,429.73 and 1,951.38

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Solution

The fourth proportional to 3,211.34, 4,429.73 and 1,951.38 is: 2,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.34 : 4,429.73 = 1,951.38 : x
  2. Step 2: Convert to fraction form
    3,211.34/4,429.73 = 1,951.38/x
  3. Step 3: Cross multiply
    3,211.34x = 4,429.73 × 1,951.38
  4. Step 4: Simplify right side
    3,211.34x = 8,644,076.77
  5. Step 5: Solve for x
    x = 8,644,076.77/3,211.34
  6. Step 6: Final answer
    x = 2,691.74

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1.5x scale

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.