Home / 7,749.80-11,623.56-2,555

Finding the Fourth Proportional to 7,749.80, 11,623.56 and 2,555

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Solution

The fourth proportional to 7,749.80, 11,623.56 and 2,555 is: 3,832.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.80 : 11,623.56 = 2,555 : x
  2. Step 2: Convert to fraction form
    7,749.80/11,623.56 = 2,555/x
  3. Step 3: Cross multiply
    7,749.80x = 11,623.56 × 2,555
  4. Step 4: Simplify right side
    7,749.80x = 29,698,195.80
  5. Step 5: Solve for x
    x = 29,698,195.80/7,749.80
  6. Step 6: Final answer
    x = 3,832.12

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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.