Home / 2,717.05-4,076.19-985.67

Finding the Fourth Proportional to 2,717.05, 4,076.19 and 985.67

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Solution

The fourth proportional to 2,717.05, 4,076.19 and 985.67 is: 1,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.05 : 4,076.19 = 985.67 : x
  2. Step 2: Convert to fraction form
    2,717.05/4,076.19 = 985.67/x
  3. Step 3: Cross multiply
    2,717.05x = 4,076.19 × 985.67
  4. Step 4: Simplify right side
    2,717.05x = 4,017,778.20
  5. Step 5: Solve for x
    x = 4,017,778.20/2,717.05
  6. Step 6: Final answer
    x = 1,478.73

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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.