Home / 2,720.66-4,080.44-1,333.40

Finding the Fourth Proportional to 2,720.66, 4,080.44 and 1,333.40

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Solution

The fourth proportional to 2,720.66, 4,080.44 and 1,333.40 is: 1,999.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.66 : 4,080.44 = 1,333.40 : x
  2. Step 2: Convert to fraction form
    2,720.66/4,080.44 = 1,333.40/x
  3. Step 3: Cross multiply
    2,720.66x = 4,080.44 × 1,333.40
  4. Step 4: Simplify right side
    2,720.66x = 5,440,858.70
  5. Step 5: Solve for x
    x = 5,440,858.70/2,720.66
  6. Step 6: Final answer
    x = 1,999.83

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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.