Home / 3,811.20-5,714.36-1,729.04

Finding the Fourth Proportional to 3,811.20, 5,714.36 and 1,729.04

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Solution

The fourth proportional to 3,811.20, 5,714.36 and 1,729.04 is: 2,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.20 : 5,714.36 = 1,729.04 : x
  2. Step 2: Convert to fraction form
    3,811.20/5,714.36 = 1,729.04/x
  3. Step 3: Cross multiply
    3,811.20x = 5,714.36 × 1,729.04
  4. Step 4: Simplify right side
    3,811.20x = 9,880,357.01
  5. Step 5: Solve for x
    x = 9,880,357.01/3,811.20
  6. Step 6: Final answer
    x = 2,592.45

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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.