Home / 5,255.36-7,885.14-2,135.60

Finding the Fourth Proportional to 5,255.36, 7,885.14 and 2,135.60

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Solution

The fourth proportional to 5,255.36, 7,885.14 and 2,135.60 is: 3,204.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.36 : 7,885.14 = 2,135.60 : x
  2. Step 2: Convert to fraction form
    5,255.36/7,885.14 = 2,135.60/x
  3. Step 3: Cross multiply
    5,255.36x = 7,885.14 × 2,135.60
  4. Step 4: Simplify right side
    5,255.36x = 16,839,504.98
  5. Step 5: Solve for x
    x = 16,839,504.98/5,255.36
  6. Step 6: Final answer
    x = 3,204.25

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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.