Home / 2,521.92-3,479.04-2,172

Finding the Fourth Proportional to 2,521.92, 3,479.04 and 2,172

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Solution

The fourth proportional to 2,521.92, 3,479.04 and 2,172 is: 2,996.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.92 : 3,479.04 = 2,172 : x
  2. Step 2: Convert to fraction form
    2,521.92/3,479.04 = 2,172/x
  3. Step 3: Cross multiply
    2,521.92x = 3,479.04 × 2,172
  4. Step 4: Simplify right side
    2,521.92x = 7,556,474.88
  5. Step 5: Solve for x
    x = 7,556,474.88/2,521.92
  6. Step 6: Final answer
    x = 2,996.32

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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.