Home / 4,080.47-6,112.69-2,689.58

Finding the Fourth Proportional to 4,080.47, 6,112.69 and 2,689.58

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Solution

The fourth proportional to 4,080.47, 6,112.69 and 2,689.58 is: 4,029.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.47 : 6,112.69 = 2,689.58 : x
  2. Step 2: Convert to fraction form
    4,080.47/6,112.69 = 2,689.58/x
  3. Step 3: Cross multiply
    4,080.47x = 6,112.69 × 2,689.58
  4. Step 4: Simplify right side
    4,080.47x = 16,440,577.33
  5. Step 5: Solve for x
    x = 16,440,577.33/4,080.47
  6. Step 6: Final answer
    x = 4,029.09

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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.