Home / 5,144.12-7,714.44-1,680.56

Finding the Fourth Proportional to 5,144.12, 7,714.44 and 1,680.56

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Solution

The fourth proportional to 5,144.12, 7,714.44 and 1,680.56 is: 2,520.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.12 : 7,714.44 = 1,680.56 : x
  2. Step 2: Convert to fraction form
    5,144.12/7,714.44 = 1,680.56/x
  3. Step 3: Cross multiply
    5,144.12x = 7,714.44 × 1,680.56
  4. Step 4: Simplify right side
    5,144.12x = 12,964,579.29
  5. Step 5: Solve for x
    x = 12,964,579.29/5,144.12
  6. Step 6: Final answer
    x = 2,520.27

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1.5x scale

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.