Home / 7,764.83-11,645.29-2,218.20

Finding the Fourth Proportional to 7,764.83, 11,645.29 and 2,218.20

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Solution

The fourth proportional to 7,764.83, 11,645.29 and 2,218.20 is: 3,326.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.83 : 11,645.29 = 2,218.20 : x
  2. Step 2: Convert to fraction form
    7,764.83/11,645.29 = 2,218.20/x
  3. Step 3: Cross multiply
    7,764.83x = 11,645.29 × 2,218.20
  4. Step 4: Simplify right side
    7,764.83x = 25,831,594.41
  5. Step 5: Solve for x
    x = 25,831,594.41/7,764.83
  6. Step 6: Final answer
    x = 3,326.74

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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.