Home / 2,511.45-3,767.48-1,212

Finding the Fourth Proportional to 2,511.45, 3,767.48 and 1,212

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Solution

The fourth proportional to 2,511.45, 3,767.48 and 1,212 is: 1,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.45 : 3,767.48 = 1,212 : x
  2. Step 2: Convert to fraction form
    2,511.45/3,767.48 = 1,212/x
  3. Step 3: Cross multiply
    2,511.45x = 3,767.48 × 1,212
  4. Step 4: Simplify right side
    2,511.45x = 4,566,179.70
  5. Step 5: Solve for x
    x = 4,566,179.70/2,511.45
  6. Step 6: Final answer
    x = 1,818.14

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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.