Home / 7,765.17-11,649.57-2,218.59

Finding the Fourth Proportional to 7,765.17, 11,649.57 and 2,218.59

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Solution

The fourth proportional to 7,765.17, 11,649.57 and 2,218.59 is: 3,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.17 : 11,649.57 = 2,218.59 : x
  2. Step 2: Convert to fraction form
    7,765.17/11,649.57 = 2,218.59/x
  3. Step 3: Cross multiply
    7,765.17x = 11,649.57 × 2,218.59
  4. Step 4: Simplify right side
    7,765.17x = 25,845,623.67
  5. Step 5: Solve for x
    x = 25,845,623.67/7,765.17
  6. Step 6: Final answer
    x = 3,328.41

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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.