Home / 5,118.49-7,669.36-2,649.88

Finding the Fourth Proportional to 5,118.49, 7,669.36 and 2,649.88

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Solution

The fourth proportional to 5,118.49, 7,669.36 and 2,649.88 is: 3,970.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.49 : 7,669.36 = 2,649.88 : x
  2. Step 2: Convert to fraction form
    5,118.49/7,669.36 = 2,649.88/x
  3. Step 3: Cross multiply
    5,118.49x = 7,669.36 × 2,649.88
  4. Step 4: Simplify right side
    5,118.49x = 20,322,883.68
  5. Step 5: Solve for x
    x = 20,322,883.68/5,118.49
  6. Step 6: Final answer
    x = 3,970.48

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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.