Home / 7,321.28-10,976.60-3,423.52

Finding the Fourth Proportional to 7,321.28, 10,976.60 and 3,423.52

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Solution

The fourth proportional to 7,321.28, 10,976.60 and 3,423.52 is: 5,132.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.28 : 10,976.60 = 3,423.52 : x
  2. Step 2: Convert to fraction form
    7,321.28/10,976.60 = 3,423.52/x
  3. Step 3: Cross multiply
    7,321.28x = 10,976.60 × 3,423.52
  4. Step 4: Simplify right side
    7,321.28x = 37,578,609.63
  5. Step 5: Solve for x
    x = 37,578,609.63/7,321.28
  6. Step 6: Final answer
    x = 5,132.79

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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.