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Finding the Fourth Proportional to 3,070.76, 4,236.20 and 2,076.38

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Solution

The fourth proportional to 3,070.76, 4,236.20 and 2,076.38 is: 2,864.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.76 : 4,236.20 = 2,076.38 : x
  2. Step 2: Convert to fraction form
    3,070.76/4,236.20 = 2,076.38/x
  3. Step 3: Cross multiply
    3,070.76x = 4,236.20 × 2,076.38
  4. Step 4: Simplify right side
    3,070.76x = 8,795,960.96
  5. Step 5: Solve for x
    x = 8,795,960.96/3,070.76
  6. Step 6: Final answer
    x = 2,864.42

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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.