Home / 3,922.16-5,878.98-1,840.86

Finding the Fourth Proportional to 3,922.16, 5,878.98 and 1,840.86

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Solution

The fourth proportional to 3,922.16, 5,878.98 and 1,840.86 is: 2,759.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.16 : 5,878.98 = 1,840.86 : x
  2. Step 2: Convert to fraction form
    3,922.16/5,878.98 = 1,840.86/x
  3. Step 3: Cross multiply
    3,922.16x = 5,878.98 × 1,840.86
  4. Step 4: Simplify right side
    3,922.16x = 10,822,379.12
  5. Step 5: Solve for x
    x = 10,822,379.12/3,922.16
  6. Step 6: Final answer
    x = 2,759.29

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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.