Home / 7,082.20-10,619.40-3,385.36

Finding the Fourth Proportional to 7,082.20, 10,619.40 and 3,385.36

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Solution

The fourth proportional to 7,082.20, 10,619.40 and 3,385.36 is: 5,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,082.20 : 10,619.40 = 3,385.36 : x
  2. Step 2: Convert to fraction form
    7,082.20/10,619.40 = 3,385.36/x
  3. Step 3: Cross multiply
    7,082.20x = 10,619.40 × 3,385.36
  4. Step 4: Simplify right side
    7,082.20x = 35,950,491.98
  5. Step 5: Solve for x
    x = 35,950,491.98/7,082.20
  6. Step 6: Final answer
    x = 5,076.18

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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.