Home / 3,796.50-5,239.15-2,117.95

Finding the Fourth Proportional to 3,796.50, 5,239.15 and 2,117.95

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Solution

The fourth proportional to 3,796.50, 5,239.15 and 2,117.95 is: 2,922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,796.50 : 5,239.15 = 2,117.95 : x
  2. Step 2: Convert to fraction form
    3,796.50/5,239.15 = 2,117.95/x
  3. Step 3: Cross multiply
    3,796.50x = 5,239.15 × 2,117.95
  4. Step 4: Simplify right side
    3,796.50x = 11,096,239.35
  5. Step 5: Solve for x
    x = 11,096,239.35/3,796.50
  6. Step 6: Final answer
    x = 2,922.75

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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.