Home / 5,391.99-8,082.32-2,105.01

Finding the Fourth Proportional to 5,391.99, 8,082.32 and 2,105.01

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Solution

The fourth proportional to 5,391.99, 8,082.32 and 2,105.01 is: 3,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.99 : 8,082.32 = 2,105.01 : x
  2. Step 2: Convert to fraction form
    5,391.99/8,082.32 = 2,105.01/x
  3. Step 3: Cross multiply
    5,391.99x = 8,082.32 × 2,105.01
  4. Step 4: Simplify right side
    5,391.99x = 17,013,353.90
  5. Step 5: Solve for x
    x = 17,013,353.90/5,391.99
  6. Step 6: Final answer
    x = 3,155.30

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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.