Home / 2,720.91-4,080.83-1,333.65

Finding the Fourth Proportional to 2,720.91, 4,080.83 and 1,333.65

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Solution

The fourth proportional to 2,720.91, 4,080.83 and 1,333.65 is: 2,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.91 : 4,080.83 = 1,333.65 : x
  2. Step 2: Convert to fraction form
    2,720.91/4,080.83 = 1,333.65/x
  3. Step 3: Cross multiply
    2,720.91x = 4,080.83 × 1,333.65
  4. Step 4: Simplify right side
    2,720.91x = 5,442,392.26
  5. Step 5: Solve for x
    x = 5,442,392.26/2,720.91
  6. Step 6: Final answer
    x = 2,000.21

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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.