Home / 4,215.24-6,326-3,122.55

Finding the Fourth Proportional to 4,215.24, 6,326 and 3,122.55

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Solution

The fourth proportional to 4,215.24, 6,326 and 3,122.55 is: 4,686.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.24 : 6,326 = 3,122.55 : x
  2. Step 2: Convert to fraction form
    4,215.24/6,326 = 3,122.55/x
  3. Step 3: Cross multiply
    4,215.24x = 6,326 × 3,122.55
  4. Step 4: Simplify right side
    4,215.24x = 19,753,251.30
  5. Step 5: Solve for x
    x = 19,753,251.30/4,215.24
  6. Step 6: Final answer
    x = 4,686.15

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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.