Home / 2,686.14-4,029.89-837.54

Finding the Fourth Proportional to 2,686.14, 4,029.89 and 837.54

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Solution

The fourth proportional to 2,686.14, 4,029.89 and 837.54 is: 1,256.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.14 : 4,029.89 = 837.54 : x
  2. Step 2: Convert to fraction form
    2,686.14/4,029.89 = 837.54/x
  3. Step 3: Cross multiply
    2,686.14x = 4,029.89 × 837.54
  4. Step 4: Simplify right side
    2,686.14x = 3,375,189.88
  5. Step 5: Solve for x
    x = 3,375,189.88/2,686.14
  6. Step 6: Final answer
    x = 1,256.52

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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.