Home / 7,952.77-11,921.86-2,755

Finding the Fourth Proportional to 7,952.77, 11,921.86 and 2,755

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Solution

The fourth proportional to 7,952.77, 11,921.86 and 2,755 is: 4,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.77 : 11,921.86 = 2,755 : x
  2. Step 2: Convert to fraction form
    7,952.77/11,921.86 = 2,755/x
  3. Step 3: Cross multiply
    7,952.77x = 11,921.86 × 2,755
  4. Step 4: Simplify right side
    7,952.77x = 32,844,724.30
  5. Step 5: Solve for x
    x = 32,844,724.30/7,952.77
  6. Step 6: Final answer
    x = 4,129.97

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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.