Home / 5,082.80-7,623.42-1,385.33

Finding the Fourth Proportional to 5,082.80, 7,623.42 and 1,385.33

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Solution

The fourth proportional to 5,082.80, 7,623.42 and 1,385.33 is: 2,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,082.80 : 7,623.42 = 1,385.33 : x
  2. Step 2: Convert to fraction form
    5,082.80/7,623.42 = 1,385.33/x
  3. Step 3: Cross multiply
    5,082.80x = 7,623.42 × 1,385.33
  4. Step 4: Simplify right side
    5,082.80x = 10,560,939.32
  5. Step 5: Solve for x
    x = 10,560,939.32/5,082.80
  6. Step 6: Final answer
    x = 2,077.78

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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.