Home / 7,426.05-11,138.79-2,231.79

Finding the Fourth Proportional to 7,426.05, 11,138.79 and 2,231.79

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Solution

The fourth proportional to 7,426.05, 11,138.79 and 2,231.79 is: 3,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.05 : 11,138.79 = 2,231.79 : x
  2. Step 2: Convert to fraction form
    7,426.05/11,138.79 = 2,231.79/x
  3. Step 3: Cross multiply
    7,426.05x = 11,138.79 × 2,231.79
  4. Step 4: Simplify right side
    7,426.05x = 24,859,440.13
  5. Step 5: Solve for x
    x = 24,859,440.13/7,426.05
  6. Step 6: Final answer
    x = 3,347.60

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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.