Home / 7,838.05-11,749.87-3,392.93

Finding the Fourth Proportional to 7,838.05, 11,749.87 and 3,392.93

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Solution

The fourth proportional to 7,838.05, 11,749.87 and 3,392.93 is: 5,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.05 : 11,749.87 = 3,392.93 : x
  2. Step 2: Convert to fraction form
    7,838.05/11,749.87 = 3,392.93/x
  3. Step 3: Cross multiply
    7,838.05x = 11,749.87 × 3,392.93
  4. Step 4: Simplify right side
    7,838.05x = 39,866,436.82
  5. Step 5: Solve for x
    x = 39,866,436.82/7,838.05
  6. Step 6: Final answer
    x = 5,086.27

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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.