Home / 5,257.72-7,256.19-3,929.14

Finding the Fourth Proportional to 5,257.72, 7,256.19 and 3,929.14

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Solution

The fourth proportional to 5,257.72, 7,256.19 and 3,929.14 is: 5,422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.72 : 7,256.19 = 3,929.14 : x
  2. Step 2: Convert to fraction form
    5,257.72/7,256.19 = 3,929.14/x
  3. Step 3: Cross multiply
    5,257.72x = 7,256.19 × 3,929.14
  4. Step 4: Simplify right side
    5,257.72x = 28,510,586.38
  5. Step 5: Solve for x
    x = 28,510,586.38/5,257.72
  6. Step 6: Final answer
    x = 5,422.61

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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.