Home / 2,686.75-4,029.09-1,043.08

Finding the Fourth Proportional to 2,686.75, 4,029.09 and 1,043.08

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Solution

The fourth proportional to 2,686.75, 4,029.09 and 1,043.08 is: 1,564.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.75 : 4,029.09 = 1,043.08 : x
  2. Step 2: Convert to fraction form
    2,686.75/4,029.09 = 1,043.08/x
  3. Step 3: Cross multiply
    2,686.75x = 4,029.09 × 1,043.08
  4. Step 4: Simplify right side
    2,686.75x = 4,202,665.80
  5. Step 5: Solve for x
    x = 4,202,665.80/2,686.75
  6. Step 6: Final answer
    x = 1,564.22

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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.