Home / 4,111.26-6,160.80-2,649.20

Finding the Fourth Proportional to 4,111.26, 6,160.80 and 2,649.20

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Solution

The fourth proportional to 4,111.26, 6,160.80 and 2,649.20 is: 3,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.26 : 6,160.80 = 2,649.20 : x
  2. Step 2: Convert to fraction form
    4,111.26/6,160.80 = 2,649.20/x
  3. Step 3: Cross multiply
    4,111.26x = 6,160.80 × 2,649.20
  4. Step 4: Simplify right side
    4,111.26x = 16,321,191.36
  5. Step 5: Solve for x
    x = 16,321,191.36/4,111.26
  6. Step 6: Final answer
    x = 3,969.88

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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.