Home / 3,881.30-5,355.99-2,287.89

Finding the Fourth Proportional to 3,881.30, 5,355.99 and 2,287.89

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Solution

The fourth proportional to 3,881.30, 5,355.99 and 2,287.89 is: 3,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.30 : 5,355.99 = 2,287.89 : x
  2. Step 2: Convert to fraction form
    3,881.30/5,355.99 = 2,287.89/x
  3. Step 3: Cross multiply
    3,881.30x = 5,355.99 × 2,287.89
  4. Step 4: Simplify right side
    3,881.30x = 12,253,915.96
  5. Step 5: Solve for x
    x = 12,253,915.96/3,881.30
  6. Step 6: Final answer
    x = 3,157.17

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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.