Home / 2,717.62-4,076.42-985.84

Finding the Fourth Proportional to 2,717.62, 4,076.42 and 985.84

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Solution

The fourth proportional to 2,717.62, 4,076.42 and 985.84 is: 1,478.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.62 : 4,076.42 = 985.84 : x
  2. Step 2: Convert to fraction form
    2,717.62/4,076.42 = 985.84/x
  3. Step 3: Cross multiply
    2,717.62x = 4,076.42 × 985.84
  4. Step 4: Simplify right side
    2,717.62x = 4,018,697.89
  5. Step 5: Solve for x
    x = 4,018,697.89/2,717.62
  6. Step 6: Final answer
    x = 1,478.76

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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.