Home / 2,684.75-4,021.90-1,511.17

Finding the Fourth Proportional to 2,684.75, 4,021.90 and 1,511.17

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Solution

The fourth proportional to 2,684.75, 4,021.90 and 1,511.17 is: 2,263.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.75 : 4,021.90 = 1,511.17 : x
  2. Step 2: Convert to fraction form
    2,684.75/4,021.90 = 1,511.17/x
  3. Step 3: Cross multiply
    2,684.75x = 4,021.90 × 1,511.17
  4. Step 4: Simplify right side
    2,684.75x = 6,077,760.79
  5. Step 5: Solve for x
    x = 6,077,760.79/2,684.75
  6. Step 6: Final answer
    x = 2,263.81

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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.