Home / 3,892.88-5,370.57-2,714.65

Finding the Fourth Proportional to 3,892.88, 5,370.57 and 2,714.65

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Solution

The fourth proportional to 3,892.88, 5,370.57 and 2,714.65 is: 3,745.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.88 : 5,370.57 = 2,714.65 : x
  2. Step 2: Convert to fraction form
    3,892.88/5,370.57 = 2,714.65/x
  3. Step 3: Cross multiply
    3,892.88x = 5,370.57 × 2,714.65
  4. Step 4: Simplify right side
    3,892.88x = 14,579,204.42
  5. Step 5: Solve for x
    x = 14,579,204.42/3,892.88
  6. Step 6: Final answer
    x = 3,745.09

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1.5x scale

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.