Home / 7,281.08-10,921.62-2,661.56

Finding the Fourth Proportional to 7,281.08, 10,921.62 and 2,661.56

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Solution

The fourth proportional to 7,281.08, 10,921.62 and 2,661.56 is: 3,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.08 : 10,921.62 = 2,661.56 : x
  2. Step 2: Convert to fraction form
    7,281.08/10,921.62 = 2,661.56/x
  3. Step 3: Cross multiply
    7,281.08x = 10,921.62 × 2,661.56
  4. Step 4: Simplify right side
    7,281.08x = 29,068,546.93
  5. Step 5: Solve for x
    x = 29,068,546.93/7,281.08
  6. Step 6: Final answer
    x = 3,992.34

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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.