Home / 5,390.46-8,082.79-3,170.06

Finding the Fourth Proportional to 5,390.46, 8,082.79 and 3,170.06

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Solution

The fourth proportional to 5,390.46, 8,082.79 and 3,170.06 is: 4,753.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.46 : 8,082.79 = 3,170.06 : x
  2. Step 2: Convert to fraction form
    5,390.46/8,082.79 = 3,170.06/x
  3. Step 3: Cross multiply
    5,390.46x = 8,082.79 × 3,170.06
  4. Step 4: Simplify right side
    5,390.46x = 25,622,929.27
  5. Step 5: Solve for x
    x = 25,622,929.27/5,390.46
  6. Step 6: Final answer
    x = 4,753.38

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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.