Home / 2,178.26-3,267.07-717.42

Finding the Fourth Proportional to 2,178.26, 3,267.07 and 717.42

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Solution

The fourth proportional to 2,178.26, 3,267.07 and 717.42 is: 1,076.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.26 : 3,267.07 = 717.42 : x
  2. Step 2: Convert to fraction form
    2,178.26/3,267.07 = 717.42/x
  3. Step 3: Cross multiply
    2,178.26x = 3,267.07 × 717.42
  4. Step 4: Simplify right side
    2,178.26x = 2,343,871.82
  5. Step 5: Solve for x
    x = 2,343,871.82/2,178.26
  6. Step 6: Final answer
    x = 1,076.03

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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.