Home / 3,771.86-5,205.79-2,199.95

Finding the Fourth Proportional to 3,771.86, 5,205.79 and 2,199.95

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Solution

The fourth proportional to 3,771.86, 5,205.79 and 2,199.95 is: 3,036.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.86 : 5,205.79 = 2,199.95 : x
  2. Step 2: Convert to fraction form
    3,771.86/5,205.79 = 2,199.95/x
  3. Step 3: Cross multiply
    3,771.86x = 5,205.79 × 2,199.95
  4. Step 4: Simplify right side
    3,771.86x = 11,452,461.58
  5. Step 5: Solve for x
    x = 11,452,461.58/3,771.86
  6. Step 6: Final answer
    x = 3,036.29

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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.