Home / 2,082.42-3,124.44-986.22

Finding the Fourth Proportional to 2,082.42, 3,124.44 and 986.22

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Solution

The fourth proportional to 2,082.42, 3,124.44 and 986.22 is: 1,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.42 : 3,124.44 = 986.22 : x
  2. Step 2: Convert to fraction form
    2,082.42/3,124.44 = 986.22/x
  3. Step 3: Cross multiply
    2,082.42x = 3,124.44 × 986.22
  4. Step 4: Simplify right side
    2,082.42x = 3,081,385.22
  5. Step 5: Solve for x
    x = 3,081,385.22/2,082.42
  6. Step 6: Final answer
    x = 1,479.71

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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.