Home / 7,132.72-10,694.97-2,749.60

Finding the Fourth Proportional to 7,132.72, 10,694.97 and 2,749.60

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Solution

The fourth proportional to 7,132.72, 10,694.97 and 2,749.60 is: 4,122.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.72 : 10,694.97 = 2,749.60 : x
  2. Step 2: Convert to fraction form
    7,132.72/10,694.97 = 2,749.60/x
  3. Step 3: Cross multiply
    7,132.72x = 10,694.97 × 2,749.60
  4. Step 4: Simplify right side
    7,132.72x = 29,406,889.51
  5. Step 5: Solve for x
    x = 29,406,889.51/7,132.72
  6. Step 6: Final answer
    x = 4,122.82

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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.