Home / 3,878.50-5,352.33-2,199.94

Finding the Fourth Proportional to 3,878.50, 5,352.33 and 2,199.94

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Solution

The fourth proportional to 3,878.50, 5,352.33 and 2,199.94 is: 3,035.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.50 : 5,352.33 = 2,199.94 : x
  2. Step 2: Convert to fraction form
    3,878.50/5,352.33 = 2,199.94/x
  3. Step 3: Cross multiply
    3,878.50x = 5,352.33 × 2,199.94
  4. Step 4: Simplify right side
    3,878.50x = 11,774,804.86
  5. Step 5: Solve for x
    x = 11,774,804.86/3,878.50
  6. Step 6: Final answer
    x = 3,035.92

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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.