Home / 1,509.22-2,082.19-949.73

Finding the Fourth Proportional to 1,509.22, 2,082.19 and 949.73

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Solution

The fourth proportional to 1,509.22, 2,082.19 and 949.73 is: 1,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.22 : 2,082.19 = 949.73 : x
  2. Step 2: Convert to fraction form
    1,509.22/2,082.19 = 949.73/x
  3. Step 3: Cross multiply
    1,509.22x = 2,082.19 × 949.73
  4. Step 4: Simplify right side
    1,509.22x = 1,977,507.30
  5. Step 5: Solve for x
    x = 1,977,507.30/1,509.22
  6. Step 6: Final answer
    x = 1,310.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.