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Finding the Fourth Proportional to 3,809.03, 5,714.15 and 1,343.79

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Solution

The fourth proportional to 3,809.03, 5,714.15 and 1,343.79 is: 2,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.03 : 5,714.15 = 1,343.79 : x
  2. Step 2: Convert to fraction form
    3,809.03/5,714.15 = 1,343.79/x
  3. Step 3: Cross multiply
    3,809.03x = 5,714.15 × 1,343.79
  4. Step 4: Simplify right side
    3,809.03x = 7,678,610.91
  5. Step 5: Solve for x
    x = 7,678,610.91/3,809.03
  6. Step 6: Final answer
    x = 2,015.90

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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.