Home / 2,720.69-4,081.04-1,077.47

Finding the Fourth Proportional to 2,720.69, 4,081.04 and 1,077.47

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Solution

The fourth proportional to 2,720.69, 4,081.04 and 1,077.47 is: 1,616.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.69 : 4,081.04 = 1,077.47 : x
  2. Step 2: Convert to fraction form
    2,720.69/4,081.04 = 1,077.47/x
  3. Step 3: Cross multiply
    2,720.69x = 4,081.04 × 1,077.47
  4. Step 4: Simplify right side
    2,720.69x = 4,397,192.78
  5. Step 5: Solve for x
    x = 4,397,192.78/2,720.69
  6. Step 6: Final answer
    x = 1,616.21

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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.