Home / 5,076.50-7,615.87-2,157.30

Finding the Fourth Proportional to 5,076.50, 7,615.87 and 2,157.30

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Solution

The fourth proportional to 5,076.50, 7,615.87 and 2,157.30 is: 3,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.50 : 7,615.87 = 2,157.30 : x
  2. Step 2: Convert to fraction form
    5,076.50/7,615.87 = 2,157.30/x
  3. Step 3: Cross multiply
    5,076.50x = 7,615.87 × 2,157.30
  4. Step 4: Simplify right side
    5,076.50x = 16,429,716.35
  5. Step 5: Solve for x
    x = 16,429,716.35/5,076.50
  6. Step 6: Final answer
    x = 3,236.43

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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.