Home / 7,922.91-11,885.25-3,539.79

Finding the Fourth Proportional to 7,922.91, 11,885.25 and 3,539.79

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Solution

The fourth proportional to 7,922.91, 11,885.25 and 3,539.79 is: 5,310.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.91 : 11,885.25 = 3,539.79 : x
  2. Step 2: Convert to fraction form
    7,922.91/11,885.25 = 3,539.79/x
  3. Step 3: Cross multiply
    7,922.91x = 11,885.25 × 3,539.79
  4. Step 4: Simplify right side
    7,922.91x = 42,071,289.10
  5. Step 5: Solve for x
    x = 42,071,289.10/7,922.91
  6. Step 6: Final answer
    x = 5,310.08

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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.