Home / 7,838.36-11,756.97-3,679.31

Finding the Fourth Proportional to 7,838.36, 11,756.97 and 3,679.31

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Solution

The fourth proportional to 7,838.36, 11,756.97 and 3,679.31 is: 5,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.36 : 11,756.97 = 3,679.31 : x
  2. Step 2: Convert to fraction form
    7,838.36/11,756.97 = 3,679.31/x
  3. Step 3: Cross multiply
    7,838.36x = 11,756.97 × 3,679.31
  4. Step 4: Simplify right side
    7,838.36x = 43,257,537.29
  5. Step 5: Solve for x
    x = 43,257,537.29/7,838.36
  6. Step 6: Final answer
    x = 5,518.70

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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.