Home / 3,343.68-5,005.80-2,789.64

Finding the Fourth Proportional to 3,343.68, 5,005.80 and 2,789.64

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Solution

The fourth proportional to 3,343.68, 5,005.80 and 2,789.64 is: 4,176.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,343.68 : 5,005.80 = 2,789.64 : x
  2. Step 2: Convert to fraction form
    3,343.68/5,005.80 = 2,789.64/x
  3. Step 3: Cross multiply
    3,343.68x = 5,005.80 × 2,789.64
  4. Step 4: Simplify right side
    3,343.68x = 13,964,379.91
  5. Step 5: Solve for x
    x = 13,964,379.91/3,343.68
  6. Step 6: Final answer
    x = 4,176.35

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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.