Home / 7,630.30-11,449.86-4,120.37

Finding the Fourth Proportional to 7,630.30, 11,449.86 and 4,120.37

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Solution

The fourth proportional to 7,630.30, 11,449.86 and 4,120.37 is: 6,182.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,630.30 : 11,449.86 = 4,120.37 : x
  2. Step 2: Convert to fraction form
    7,630.30/11,449.86 = 4,120.37/x
  3. Step 3: Cross multiply
    7,630.30x = 11,449.86 × 4,120.37
  4. Step 4: Simplify right side
    7,630.30x = 47,177,629.88
  5. Step 5: Solve for x
    x = 47,177,629.88/7,630.30
  6. Step 6: Final answer
    x = 6,182.93

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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.