Home / 3,885.80-5,832.86-2,153.96

Finding the Fourth Proportional to 3,885.80, 5,832.86 and 2,153.96

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Solution

The fourth proportional to 3,885.80, 5,832.86 and 2,153.96 is: 3,233.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.80 : 5,832.86 = 2,153.96 : x
  2. Step 2: Convert to fraction form
    3,885.80/5,832.86 = 2,153.96/x
  3. Step 3: Cross multiply
    3,885.80x = 5,832.86 × 2,153.96
  4. Step 4: Simplify right side
    3,885.80x = 12,563,747.13
  5. Step 5: Solve for x
    x = 12,563,747.13/3,885.80
  6. Step 6: Final answer
    x = 3,233.25

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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.