Home / 2,511.11-3,767.52-1,211.69

Finding the Fourth Proportional to 2,511.11, 3,767.52 and 1,211.69

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Solution

The fourth proportional to 2,511.11, 3,767.52 and 1,211.69 is: 1,817.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.11 : 3,767.52 = 1,211.69 : x
  2. Step 2: Convert to fraction form
    2,511.11/3,767.52 = 1,211.69/x
  3. Step 3: Cross multiply
    2,511.11x = 3,767.52 × 1,211.69
  4. Step 4: Simplify right side
    2,511.11x = 4,565,080.27
  5. Step 5: Solve for x
    x = 4,565,080.27/2,511.11
  6. Step 6: Final answer
    x = 1,817.95

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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.