Home / 7,964.01-11,945.99-2,120.63

Finding the Fourth Proportional to 7,964.01, 11,945.99 and 2,120.63

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Solution

The fourth proportional to 7,964.01, 11,945.99 and 2,120.63 is: 3,180.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.01 : 11,945.99 = 2,120.63 : x
  2. Step 2: Convert to fraction form
    7,964.01/11,945.99 = 2,120.63/x
  3. Step 3: Cross multiply
    7,964.01x = 11,945.99 × 2,120.63
  4. Step 4: Simplify right side
    7,964.01x = 25,332,970.35
  5. Step 5: Solve for x
    x = 25,332,970.35/7,964.01
  6. Step 6: Final answer
    x = 3,180.93

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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.