Home / 7,764.32-11,648.31-2,217.75

Finding the Fourth Proportional to 7,764.32, 11,648.31 and 2,217.75

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Solution

The fourth proportional to 7,764.32, 11,648.31 and 2,217.75 is: 3,327.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.32 : 11,648.31 = 2,217.75 : x
  2. Step 2: Convert to fraction form
    7,764.32/11,648.31 = 2,217.75/x
  3. Step 3: Cross multiply
    7,764.32x = 11,648.31 × 2,217.75
  4. Step 4: Simplify right side
    7,764.32x = 25,832,987.50
  5. Step 5: Solve for x
    x = 25,832,987.50/7,764.32
  6. Step 6: Final answer
    x = 3,327.14

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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.