Home / 5,076.60-7,615.98-2,156.28

Finding the Fourth Proportional to 5,076.60, 7,615.98 and 2,156.28

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Solution

The fourth proportional to 5,076.60, 7,615.98 and 2,156.28 is: 3,234.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.60 : 7,615.98 = 2,156.28 : x
  2. Step 2: Convert to fraction form
    5,076.60/7,615.98 = 2,156.28/x
  3. Step 3: Cross multiply
    5,076.60x = 7,615.98 × 2,156.28
  4. Step 4: Simplify right side
    5,076.60x = 16,422,185.35
  5. Step 5: Solve for x
    x = 16,422,185.35/5,076.60
  6. Step 6: Final answer
    x = 3,234.88

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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.