Home / 2,687.97-4,030.08-1,186.26

Finding the Fourth Proportional to 2,687.97, 4,030.08 and 1,186.26

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Solution

The fourth proportional to 2,687.97, 4,030.08 and 1,186.26 is: 1,778.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.97 : 4,030.08 = 1,186.26 : x
  2. Step 2: Convert to fraction form
    2,687.97/4,030.08 = 1,186.26/x
  3. Step 3: Cross multiply
    2,687.97x = 4,030.08 × 1,186.26
  4. Step 4: Simplify right side
    2,687.97x = 4,780,722.70
  5. Step 5: Solve for x
    x = 4,780,722.70/2,687.97
  6. Step 6: Final answer
    x = 1,778.56

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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.