Home / 7,764.98-11,649.29-2,218.41

Finding the Fourth Proportional to 7,764.98, 11,649.29 and 2,218.41

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Solution

The fourth proportional to 7,764.98, 11,649.29 and 2,218.41 is: 3,328.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.98 : 11,649.29 = 2,218.41 : x
  2. Step 2: Convert to fraction form
    7,764.98/11,649.29 = 2,218.41/x
  3. Step 3: Cross multiply
    7,764.98x = 11,649.29 × 2,218.41
  4. Step 4: Simplify right side
    7,764.98x = 25,842,890.34
  5. Step 5: Solve for x
    x = 25,842,890.34/7,764.98
  6. Step 6: Final answer
    x = 3,328.14

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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.