Home / 7,971.52-11,958.88-2,776

Finding the Fourth Proportional to 7,971.52, 11,958.88 and 2,776

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Solution

The fourth proportional to 7,971.52, 11,958.88 and 2,776 is: 4,164.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.52 : 11,958.88 = 2,776 : x
  2. Step 2: Convert to fraction form
    7,971.52/11,958.88 = 2,776/x
  3. Step 3: Cross multiply
    7,971.52x = 11,958.88 × 2,776
  4. Step 4: Simplify right side
    7,971.52x = 33,197,850.88
  5. Step 5: Solve for x
    x = 33,197,850.88/7,971.52
  6. Step 6: Final answer
    x = 4,164.56

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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.