Home / 3,121.52-4,306.66-2,059.81

Finding the Fourth Proportional to 3,121.52, 4,306.66 and 2,059.81

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Solution

The fourth proportional to 3,121.52, 4,306.66 and 2,059.81 is: 2,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.52 : 4,306.66 = 2,059.81 : x
  2. Step 2: Convert to fraction form
    3,121.52/4,306.66 = 2,059.81/x
  3. Step 3: Cross multiply
    3,121.52x = 4,306.66 × 2,059.81
  4. Step 4: Simplify right side
    3,121.52x = 8,870,885.42
  5. Step 5: Solve for x
    x = 8,870,885.42/3,121.52
  6. Step 6: Final answer
    x = 2,841.85

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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.