Home / 7,076.75-10,615.15-2,146.43

Finding the Fourth Proportional to 7,076.75, 10,615.15 and 2,146.43

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Solution

The fourth proportional to 7,076.75, 10,615.15 and 2,146.43 is: 3,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076.75 : 10,615.15 = 2,146.43 : x
  2. Step 2: Convert to fraction form
    7,076.75/10,615.15 = 2,146.43/x
  3. Step 3: Cross multiply
    7,076.75x = 10,615.15 × 2,146.43
  4. Step 4: Simplify right side
    7,076.75x = 22,784,705.64
  5. Step 5: Solve for x
    x = 22,784,705.64/7,076.75
  6. Step 6: Final answer
    x = 3,219.66

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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.