Home / 2,722.88-4,082.45-1,079.61

Finding the Fourth Proportional to 2,722.88, 4,082.45 and 1,079.61

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Solution

The fourth proportional to 2,722.88, 4,082.45 and 1,079.61 is: 1,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.88 : 4,082.45 = 1,079.61 : x
  2. Step 2: Convert to fraction form
    2,722.88/4,082.45 = 1,079.61/x
  3. Step 3: Cross multiply
    2,722.88x = 4,082.45 × 1,079.61
  4. Step 4: Simplify right side
    2,722.88x = 4,407,448.45
  5. Step 5: Solve for x
    x = 4,407,448.45/2,722.88
  6. Step 6: Final answer
    x = 1,618.67

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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.