Home / 3,714.28-5,121.30-2,388.04

Finding the Fourth Proportional to 3,714.28, 5,121.30 and 2,388.04

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Solution

The fourth proportional to 3,714.28, 5,121.30 and 2,388.04 is: 3,292.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.28 : 5,121.30 = 2,388.04 : x
  2. Step 2: Convert to fraction form
    3,714.28/5,121.30 = 2,388.04/x
  3. Step 3: Cross multiply
    3,714.28x = 5,121.30 × 2,388.04
  4. Step 4: Simplify right side
    3,714.28x = 12,229,869.25
  5. Step 5: Solve for x
    x = 12,229,869.25/3,714.28
  6. Step 6: Final answer
    x = 3,292.66

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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.