Home / 2,163.93-2,986.04-1,279.58

Finding the Fourth Proportional to 2,163.93, 2,986.04 and 1,279.58

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Solution

The fourth proportional to 2,163.93, 2,986.04 and 1,279.58 is: 1,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.93 : 2,986.04 = 1,279.58 : x
  2. Step 2: Convert to fraction form
    2,163.93/2,986.04 = 1,279.58/x
  3. Step 3: Cross multiply
    2,163.93x = 2,986.04 × 1,279.58
  4. Step 4: Simplify right side
    2,163.93x = 3,820,855.74
  5. Step 5: Solve for x
    x = 3,820,855.74/2,163.93
  6. Step 6: Final answer
    x = 1,765.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.