Home / 7,937.40-11,908.56-3,257.79

Finding the Fourth Proportional to 7,937.40, 11,908.56 and 3,257.79

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Solution

The fourth proportional to 7,937.40, 11,908.56 and 3,257.79 is: 4,887.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.40 : 11,908.56 = 3,257.79 : x
  2. Step 2: Convert to fraction form
    7,937.40/11,908.56 = 3,257.79/x
  3. Step 3: Cross multiply
    7,937.40x = 11,908.56 × 3,257.79
  4. Step 4: Simplify right side
    7,937.40x = 38,795,587.68
  5. Step 5: Solve for x
    x = 38,795,587.68/7,937.40
  6. Step 6: Final answer
    x = 4,887.69

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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.