Home / 5,121.79-7,682.84-2,001.67

Finding the Fourth Proportional to 5,121.79, 7,682.84 and 2,001.67

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Solution

The fourth proportional to 5,121.79, 7,682.84 and 2,001.67 is: 3,002.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.79 : 7,682.84 = 2,001.67 : x
  2. Step 2: Convert to fraction form
    5,121.79/7,682.84 = 2,001.67/x
  3. Step 3: Cross multiply
    5,121.79x = 7,682.84 × 2,001.67
  4. Step 4: Simplify right side
    5,121.79x = 15,378,500.33
  5. Step 5: Solve for x
    x = 15,378,500.33/5,121.79
  6. Step 6: Final answer
    x = 3,002.56

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1.5x scale

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.