Home / 2,715.90-4,076.82-2,106.96

Finding the Fourth Proportional to 2,715.90, 4,076.82 and 2,106.96

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Solution

The fourth proportional to 2,715.90, 4,076.82 and 2,106.96 is: 3,162.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.90 : 4,076.82 = 2,106.96 : x
  2. Step 2: Convert to fraction form
    2,715.90/4,076.82 = 2,106.96/x
  3. Step 3: Cross multiply
    2,715.90x = 4,076.82 × 2,106.96
  4. Step 4: Simplify right side
    2,715.90x = 8,589,696.67
  5. Step 5: Solve for x
    x = 8,589,696.67/2,715.90
  6. Step 6: Final answer
    x = 3,162.74

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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.