Home / 7,979.54-11,964.30-5,790.10

Finding the Fourth Proportional to 7,979.54, 11,964.30 and 5,790.10

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Solution

The fourth proportional to 7,979.54, 11,964.30 and 5,790.10 is: 8,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.54 : 11,964.30 = 5,790.10 : x
  2. Step 2: Convert to fraction form
    7,979.54/11,964.30 = 5,790.10/x
  3. Step 3: Cross multiply
    7,979.54x = 11,964.30 × 5,790.10
  4. Step 4: Simplify right side
    7,979.54x = 69,274,493.43
  5. Step 5: Solve for x
    x = 69,274,493.43/7,979.54
  6. Step 6: Final answer
    x = 8,681.51

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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.