Home / 7,389.80-11,082.30-2,458.60

Finding the Fourth Proportional to 7,389.80, 11,082.30 and 2,458.60

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Solution

The fourth proportional to 7,389.80, 11,082.30 and 2,458.60 is: 3,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.80 : 11,082.30 = 2,458.60 : x
  2. Step 2: Convert to fraction form
    7,389.80/11,082.30 = 2,458.60/x
  3. Step 3: Cross multiply
    7,389.80x = 11,082.30 × 2,458.60
  4. Step 4: Simplify right side
    7,389.80x = 27,246,942.78
  5. Step 5: Solve for x
    x = 27,246,942.78/7,389.80
  6. Step 6: Final answer
    x = 3,687.10

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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.