Home / 4,076.89-6,114.11-2,128.03

Finding the Fourth Proportional to 4,076.89, 6,114.11 and 2,128.03

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Solution

The fourth proportional to 4,076.89, 6,114.11 and 2,128.03 is: 3,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,076.89 : 6,114.11 = 2,128.03 : x
  2. Step 2: Convert to fraction form
    4,076.89/6,114.11 = 2,128.03/x
  3. Step 3: Cross multiply
    4,076.89x = 6,114.11 × 2,128.03
  4. Step 4: Simplify right side
    4,076.89x = 13,010,983.58
  5. Step 5: Solve for x
    x = 13,010,983.58/4,076.89
  6. Step 6: Final answer
    x = 3,191.40

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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.